Eh, I'm still positive she would have managed to survive somehow. Her success rate in dealing with Bolas might not be high, but who knows. It might have been enough to stop him, or at least put it on the backburner. So far he hasn't done anything with the Eldrazi yet at least. Unless his grand scheme was imprison Emrakul on Innistrad it can't be that high a priority.
Oh, they definitely work as one, but I think he could have just tossed Phyrexia at some places too for about the same amount of effort. I meant more there was nothing inherent about the Eldrazi that make them necessary as a distraction. So if Nahiri had been in place he may have just gone after something else.
Oh, they definitely work as one, but I think he could have just tossed Phyrexia at some places too for about the same amount of effort. I meant more there was nothing inherent about the Eldrazi that make them necessary as a distraction. So if Nahiri had been in place he may have just gone after something else.
Once the Eldrazi are out they are self-sufficient. Phyrexia would need an agent travelling about spreading theb oil meaning that Bolas is down a minion and as of right now we don't know of that many planeswalking minions that he has.
There's was something about Sorin bringing vampires into Zen (not sure if established). How he did he do it? And since Nahiri was bitten, what's the consequence?
Something to do with lineage? As in only a progenitor can instill vamprism?
There's was something about Sorin bringing vampires into Zen (not sure if established). How he did he do it? And since Nahiri was bitten, what's the consequence?
Something to do with lineage? As in only a progenitor can instill vamprism?
On Zendikar there were no vampires until a bunch of Eldrazi cultists were warped by a (disease? spell? not entirely sure about it) of Ulamog. Those cultists became the first vampires and bloodchiefs, Drana was seemingly one of them. They are another way for Ulamog to drain energy and life from others and when he got nearly freed thousand years before Rise of the Eldrazi he warped them further so that they could be controlled by him and his brood. The bloodchiefs can sire other beings by draining their blood, but if they drain all blood and don't destroy the husk these beings become nulls. Sorin had nothing to do with them being on Zendikar.
Innistrads vampires were a result of Edgar Markov engaging in a demonic ritual involving the death of an angel. It's not entirely clear, but Innistrads vampires can sire others. I think it has to be a conscious decision though, I don't believe that Nahiri could become a vampire just from this one bite if Sorin didn't intend to do just that.
So does anybody else see Sorin as a petulant little child, which is completely at odds with his background? He keeps referring to the other walkers as children because he is ancient, he was old when they were not even born, bla bla bla, but now that he thinks Innistrad is lost, he just wants to smash everything. I mean, what's even the use of reclaiming Markov manor?
What? Someone you once cares about, taught, mentored, maybe even treated like a daughter attacks you because she won't calm down and listen for five minutes. At that time the only way it seems that you can stop her from destroying something you spent massive amounts energy on and protects literally everything you cared about is to lock her away. When she finally escaped she brings LITERALLY the worst thing imaginable to your home because she's the petulant child. He didn't just want to smash everything he just wanted to kill Nahiri. He wasn't trying to retake the Manor that's just where Nahiri had set up shop. The two of them had tried as oldwalkers to kill Ulamog once and failed and he's supposedly the smallest and weakest of the three so he gave up Innistrad for dead when big mama Emrakul came knocking at his door. I do t think anything Sorin has done is antithetical to his character.
There's was something about Sorin bringing vampires into Zen (not sure if established). How he did he do it? And since Nahiri was bitten, what's the consequence?
Something to do with lineage? As in only a progenitor can instill vamprism?
On Zendikar there were no vampires until a bunch of Eldrazi cultists were warped by a (disease? spell? not entirely sure about it) of Ulamog. Those cultists became the first vampires and bloodchiefs, Drana was seemingly one of them. They are another way for Ulamog to drain energy and life from others and when he got nearly freed thousand years before Rise of the Eldrazi he warped them further so that they could be controlled by him and his brood. The bloodchiefs can sire other beings by draining their blood, but if they drain all blood and don't destroy the husk these beings become nulls. Sorin had nothing to do with them being on Zendikar.
Innistrads vampires were a result of Edgar Markov engaging in a demonic ritual involving the death of an angel. It's not entirely clear, but Innistrads vampires can sire others. I think it has to be a conscious decision though, I don't believe that Nahiri could become a vampire just from this one bite if Sorin didn't intend to do just that.
Greetings. I just wanted to post because I've seen this ("Did Sorin turn Nahiri into a Vampire?") question come up a few times in various places and I took a little time to look into it. Here is what I found:
According to A Planeswalker's Guide to Innistrad, vampires of Innistrad need to somehow introduce their blood into the victim/target in order to introduce Vampirism. Then the victim/target has before the next new moon to drink of the sire to become a full-on vampire.
So the question remains, did Sorin somehow introduce his blood into Nahiri's body when he bit her?
Evidence against: I think just from a story telling standpoint, the author of the story "Campaign of Vengeance" would have been more overt/explicit in pointing out Sorin's blood. At one point in the story he has blood streaming down his chin, but it is from an Eldrazi-fied cultist that he had previously dispatched. In essence, I think it will seem kind of awkward/implausible if he somehow did manage to infuse her with his blood and the story didn't hint at it better...
Evidence for: Earlier in the story, "Campaign of Vengeance", Sorin has his death magic reversed back at him through Nahiri's use of leyline manipulation. As a result of the wound he sustains from this exchange, he coughs (though I don't think it explicitly says he coughs up blood). It is possible that the wound sustained here leaves some of his blood in his mouth, that could theoretically be transferred into Nahiri when he bit her. So if the MtG story writers wanted, I think they have a thinly plausible way to turn Nahiri into a vampire.
My opinion is that it is not likely Sorin turned Nahiri into a vampire, but maybe technically possible? If Kor can even become vampires (the Guide to Innistrad repeatedly mentions a clear connection between humans and vampires, and without any other humanoid races on Innistrad it's hard to know if it would work).
Sorry for the long post, those were just a few tidbits I found on the matter.
On a semi-related note: Doesn't Sorin have a sword that drinks blood (or at least life essence, as depicted on the card "Sorin's Vengeance")? If so, why did he try to drain Nahiri with the normal method? More personal? Writer forgot sword properties? And why, earlier in the same story, did he apparently drain a cultist the old fashioned vampire way? Maybe they did have him go for the throat for future plot-relevant reasons?
What? Someone you once cares about, taught, mentored, maybe even treated like a daughter attacks you because she won't calm down and listen for five minutes. At that time the only way it seems that you can stop her from destroying something you spent massive amounts energy on and protects literally everything you cared about is to lock her away. When she finally escaped she brings LITERALLY the worst thing imaginable to your home because she's the petulant child. He didn't just want to smash everything he just wanted to kill Nahiri. He wasn't trying to retake the Manor that's just where Nahiri had set up shop. The two of them had tried as oldwalkers to kill Ulamog once and failed and he's supposedly the smallest and weakest of the three so he gave up Innistrad for dead when big mama Emrakul came knocking at his door. I do t think anything Sorin has done is antithetical to his character.
"When she finally escaped"... Sorin consciously kept her locked inside for 1000 years. He was justified to lock her up inside in the first place because of her quick temper and the attempted destruction you mentioned, but does that justify that he does so for that long? Past some point in time, that justification expired and that excess time Nahiri spent inside the Helvault becomes essentially Sorin's fault. Punishment way beyond its intended limit defeats its own purpose and becomes "injustice" in its own right.
Sorin was a terrible mentor (although he looked like a decent one on initial impressions), but acts like he was/is a great one, when all he is running on is literally "Survival of the Fittest" mixed with "Blind Obedience".
But then again, the oldwalkers were all a crazy bunch not bound the societal standards of any plane, only accountable to themselves.
"When she finally escaped"... Sorin consciously kept her locked inside for 1000 years. He was justified to lock her up inside in the first place because of her quick temper and the attempted destruction you mentioned, but does that justify that he does so for that long? Past some point in time, that justification expired and that excess time Nahiri spent inside the Helvault becomes essentially Sorin's fault. Punishment way beyond its intended limit defeats its own purpose and becomes "injustice" in its own right.
Sorin was a terrible mentor (although he looked like a decent one on initial impressions), but acts like he was/is a great one, when all he is running on is literally "Survival of the Fittest" mixed with "Blind Obedience".
But then again, the oldwalkers were all a crazy bunch not bound the societal standards of any plane, only accountable to themselves.
There is no evidence that he could selectively release anybody from the hellvault. Also, unless he has been to the Gate to Phyrexia, I don't think he can destroy it. Seems a rather stretch he was even able to make it to start with. If he could destroy it that would mean all the other baddies in there would be free. Even if he does go through all the trouble of finding someone to destroy it to release her, he has no idea if she is going to come out swinging just like she went in.
Even in the absolute worst case scenario where he has to destroy the Helvault it seems fine. He can make another, and it was the combined effort of Avacyn and the Helvault that drained him.
Granted he probably doesn't see it that way, but that doesn't really excuse him.
I think that Sorin probably recovered at some point in the gap between sealing Nahiri and the Mending. It seems really inconceivable for him to be weakened for several centuries, getting close to a millennia if I'm remembering the timeline right. That's giving way too big of a recovery period for him. I got the impression he might be out of commission for a year, if even that long. Granted we have no way of knowing exactly how long he would be out, but it seems really hard to imagine him being that drained. If so they really didn't convey that in the writing, I would expect him to barely be able to stand if he was that tapped out.
The Helvault is a chunk of the moon itsef, moon that greatly affects the whole plane. I don't think its wise to keep removing parts of the moon, even if Sorin still had the power to do it.
In the story where he kills Avacyn, Sorin explicitly states that he can't create another Archangel or another Helvault. He infused them with a part of his own essence, creating them was a once-in-a-lifetime feat that can't be repeated. So no, he definitely couldn't just break open the Helvault and make a new one.
In the story where he kills Avacyn, Sorin explicitly states that he can't create another Archangel or another Helvault. He infused them with a part of his own essence, creating them was a once-in-a-lifetime feat that can't be repeated. So no, he definitely couldn't just break open the Helvault and make a new one.
He can't do that now. Whether he could pre-Mending is pretty different.
While there is no evidence that he can pull individuals out of the Helvault there's also no indication that he couldn't.
Which renders the argument kind of pointless, doesn't it? Sorin sealed Nahiri in the Helvault, but whether or not he could have pulled her back out is something we'll probably never know.
Here's a question; what do you think Nahiri's next step is? Go after Ugin? Return to Zendikar?
She heads to Zendikar in the last story article for Eldritch Moon, wounded severely from her fight with Sorin and prepared to die with her plane. But to her surprise the Plane is devoid (hehehe) of Eldrazi titans and is actually beginning to recover. This actually unhinges her a bit, as she just spent a fair amount of time enacting a plan of revenge on Sorin that was perhaps less justified than she originally thought...
Meanwhile, Ugin is studying the Eldrazi corpses when a frazzled/wounded/unhinged Nahiri shows up. He asks her where Sorin is, and manages to coax the truth of their fight and the whereabouts of Emrakul from her. Ugin then anxiously leaves for Innistrad, traveling to Markov manner only to find the bloody remains of Sorin's prison. Twist: a few blocks from now we find out Bolas released Sorin from his rock-prison and has sent him on a path to again clash with Nahiri; which will actually be a three-way battle between Nahiri, Ob Nixilus, and Sorin (Because a three-way fight between those oldwakers would probably be epic).
In the story where he kills Avacyn, Sorin explicitly states that he can't create another Archangel or another Helvault. He infused them with a part of his own essence, creating them was a once-in-a-lifetime feat that can't be repeated. So no, he definitely couldn't just break open the Helvault and make a new one.
He had around 900 years of pre-mending oldwalker powers to consider whether breaking the Helvault and having to replace it with another chunk of the Moon was worth releasing his student. Even if he couldn't replace the Helvault for whatsoever reasons (whether he doesn't have enough "essence", or the Moon ran out of rocks to be stable)... it was still a matter of prioritizing the "protection of his plane" over his student... a decision he dragged on for 1000 years before Ugin practically made him consider it. I don't think there's anything that could legitimately justify Sorin's callousness/selfishness in prioritizing the Helvault in its entirely over Nahiri.
Before people start jumping on me again for "defending Nahiri", because apparently saying Sorin's evil means so, let me clarify that Sorin's evil does not justify Nahiri's evil in any way, Nahiri is still evil (and more evil now by scale of destruction). I just find that any excuses Sorin could possibly muster up for leaving Nahiri in there for so many years cannot justify his callousness - not even the protection of Innistrad, considering Innistrad was surviving prior to the Avacyn/Helvault anyway.
Okay, I think any more, we're just going round in circles with the same points of view since I doubt little convincing was done on this topic, now to another new topic.
Permeating Mass. Traft "possessing/enhancing" Thalia, giving her relative better immunity to Emrakul's madness and transformation... Emrakul twists biology, that we all know... but spirits are not physical and therefore apparently don't seem to be affected. We all know the Gatewatch's going to save the day, but hypothetically if one could muster enough "good geists", can the plane actually be made "immune" to Emrakul by default?
If this property carries over to other planes as well, do planes like Kamigawa/Theros have natural resistances to Emrakul as well?
In the story where he kills Avacyn, Sorin explicitly states that he can't create another Archangel or another Helvault. He infused them with a part of his own essence, creating them was a once-in-a-lifetime feat that can't be repeated. So no, he definitely couldn't just break open the Helvault and make a new one.
He had around 900 years of pre-mending oldwalker powers to consider whether breaking the Helvault and having to replace it with another chunk of the Moon was worth releasing his student. Even if he couldn't replace the Helvault for whatsoever reasons (whether he doesn't have enough "essence", or the Moon ran out of rocks to be stable)... it was still a matter of prioritizing the "protection of his plane" over his student... a decision he dragged on for 1000 years before Ugin practically made him consider it. I don't think there's anything that could legitimately justify Sorin's callousness/selfishness in prioritizing the Helvault in its entirely over Nahiri.
Before people start jumping on me again for "defending Nahiri", because apparently saying Sorin's evil means so, let me clarify that Sorin's evil does not justify Nahiri's evil in any way, Nahiri is still evil (and more evil now by scale of destruction). I just find that any excuses Sorin could possibly muster up for leaving Nahiri in there for so many years cannot justify his callousness - not even the protection of Innistrad, considering Innistrad was surviving prior to the Avacyn/Helvault anyway.
Like I said earlier, any argument that's based on whether or not Sorin could/should have released Nahiri are pointless, because we don't know, and probably never will know, if he could have released her from the Helvault.
As for Spirits being immune to Emrakul... dunno. I mean, it's possible that Kamigawa would fare better against Emrakul than Innistrad has, but we'll, again, never know unless the Titan breaks free of the Moon. We can speculate, but that's also all it'd be; speculation.
I don't especially see why Sorin couldn't have broken the Helvault, it seems like the bigger stretch to conclude he couldn't.
And Theros would likely have an issue if all the biological people are getting warped, it should alter the spirit side too. Kamigawa would be better off though I think. Though I'm not sure if either plane possesses people when it comes to spirits.
I don't especially see why Sorin couldn't have broken the Helvault, it seems like the bigger stretch to conclude he couldn't.
I'm not an expert about the cards, but others here have pointed that black has a really hard time destroying artifacts. Even Liliana had to blackmail the help of Thalia to break the Helvault, so I think the bigger stretch could actually be to conclude he could.
I don't especially see why Sorin couldn't have broken the Helvault, it seems like the bigger stretch to conclude he couldn't.
I'm not an expert about the cards, but others here have pointed that black has a really hard time destroying artifacts. Even Liliana had to blackmail the help of Thalia to break the Helvault, so I think the bigger stretch could actually be to conclude he could.
If Sorin was mono-Black that would seem like a fine conclusion. He's not though. He's got White. Look at Anguished Unmaking for a very recent example of his Artifact removal.
I don't especially see why Sorin couldn't have broken the Helvault, it seems like the bigger stretch to conclude he couldn't.
I'm not an expert about the cards, but others here have pointed that black has a really hard time destroying artifacts. Even Liliana had to blackmail the help of Thalia to break the Helvault, so I think the bigger stretch could actually be to conclude he could.
If Sorin was mono-Black that would seem like a fine conclusion. He's not though. He's got White. Look at Anguished Unmaking for a very recent example of his Artifact removal.
Let it go. We simply don't know as Mangod has pointed out. Its speculation.
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Once the Eldrazi are out they are self-sufficient. Phyrexia would need an agent travelling about spreading theb oil meaning that Bolas is down a minion and as of right now we don't know of that many planeswalking minions that he has.
There's was something about Sorin bringing vampires into Zen (not sure if established). How he did he do it? And since Nahiri was bitten, what's the consequence?
Something to do with lineage? As in only a progenitor can instill vamprism?
UR Melek, Izzet ParagonUR, B Shirei, Shizo's CaretakerB, R Jaya Ballard, Task MageR,RW Tajic, Blade of the LegionRW, UB Lazav, Dimir MastermindUB, UB Circu, Dimir LobotomistUB, RWU Zedruu the GreatheartedRWU, GUBThe MimeoplasmGUB, UGExperiment Kraj UG, WDarien, King of KjeldorW, BMarrow-GnawerB, WBGKarador, Ghost ChieftainWBG, UTeferi, Temporal ArchmageU, GWUDerevi, Empyrial TacticianGWU, RDaretti, Scrap SavantR, UTalrand, Sky SummonerU, GEzuri, Renegade LeaderG, WUBRGReaper KingWUBRG, RGXenagos, God of RevelsRG, CKozilek, Butcher of TruthC, WUBRGGeneral TazriWUBRG, GTitania, Protector of ArgothG
On Zendikar there were no vampires until a bunch of Eldrazi cultists were warped by a (disease? spell? not entirely sure about it) of Ulamog. Those cultists became the first vampires and bloodchiefs, Drana was seemingly one of them. They are another way for Ulamog to drain energy and life from others and when he got nearly freed thousand years before Rise of the Eldrazi he warped them further so that they could be controlled by him and his brood. The bloodchiefs can sire other beings by draining their blood, but if they drain all blood and don't destroy the husk these beings become nulls. Sorin had nothing to do with them being on Zendikar.
Innistrads vampires were a result of Edgar Markov engaging in a demonic ritual involving the death of an angel. It's not entirely clear, but Innistrads vampires can sire others. I think it has to be a conscious decision though, I don't believe that Nahiri could become a vampire just from this one bite if Sorin didn't intend to do just that.
What? Someone you once cares about, taught, mentored, maybe even treated like a daughter attacks you because she won't calm down and listen for five minutes. At that time the only way it seems that you can stop her from destroying something you spent massive amounts energy on and protects literally everything you cared about is to lock her away. When she finally escaped she brings LITERALLY the worst thing imaginable to your home because she's the petulant child. He didn't just want to smash everything he just wanted to kill Nahiri. He wasn't trying to retake the Manor that's just where Nahiri had set up shop. The two of them had tried as oldwalkers to kill Ulamog once and failed and he's supposedly the smallest and weakest of the three so he gave up Innistrad for dead when big mama Emrakul came knocking at his door. I do t think anything Sorin has done is antithetical to his character.
Greetings. I just wanted to post because I've seen this ("Did Sorin turn Nahiri into a Vampire?") question come up a few times in various places and I took a little time to look into it. Here is what I found:
According to A Planeswalker's Guide to Innistrad, vampires of Innistrad need to somehow introduce their blood into the victim/target in order to introduce Vampirism. Then the victim/target has before the next new moon to drink of the sire to become a full-on vampire.
So the question remains, did Sorin somehow introduce his blood into Nahiri's body when he bit her?
Evidence against: I think just from a story telling standpoint, the author of the story "Campaign of Vengeance" would have been more overt/explicit in pointing out Sorin's blood. At one point in the story he has blood streaming down his chin, but it is from an Eldrazi-fied cultist that he had previously dispatched. In essence, I think it will seem kind of awkward/implausible if he somehow did manage to infuse her with his blood and the story didn't hint at it better...
Evidence for: Earlier in the story, "Campaign of Vengeance", Sorin has his death magic reversed back at him through Nahiri's use of leyline manipulation. As a result of the wound he sustains from this exchange, he coughs (though I don't think it explicitly says he coughs up blood). It is possible that the wound sustained here leaves some of his blood in his mouth, that could theoretically be transferred into Nahiri when he bit her. So if the MtG story writers wanted, I think they have a thinly plausible way to turn Nahiri into a vampire.
My opinion is that it is not likely Sorin turned Nahiri into a vampire, but maybe technically possible? If Kor can even become vampires (the Guide to Innistrad repeatedly mentions a clear connection between humans and vampires, and without any other humanoid races on Innistrad it's hard to know if it would work).
Sorry for the long post, those were just a few tidbits I found on the matter.
On a semi-related note: Doesn't Sorin have a sword that drinks blood (or at least life essence, as depicted on the card "Sorin's Vengeance")? If so, why did he try to drain Nahiri with the normal method? More personal? Writer forgot sword properties? And why, earlier in the same story, did he apparently drain a cultist the old fashioned vampire way? Maybe they did have him go for the throat for future plot-relevant reasons?
"When she finally escaped"... Sorin consciously kept her locked inside for 1000 years. He was justified to lock her up inside in the first place because of her quick temper and the attempted destruction you mentioned, but does that justify that he does so for that long? Past some point in time, that justification expired and that excess time Nahiri spent inside the Helvault becomes essentially Sorin's fault. Punishment way beyond its intended limit defeats its own purpose and becomes "injustice" in its own right.
Sorin was a terrible mentor (although he looked like a decent one on initial impressions), but acts like he was/is a great one, when all he is running on is literally "Survival of the Fittest" mixed with "Blind Obedience".
But then again, the oldwalkers were all a crazy bunch not bound the societal standards of any plane, only accountable to themselves.
There is no evidence that he could selectively release anybody from the hellvault. Also, unless he has been to the Gate to Phyrexia, I don't think he can destroy it. Seems a rather stretch he was even able to make it to start with. If he could destroy it that would mean all the other baddies in there would be free. Even if he does go through all the trouble of finding someone to destroy it to release her, he has no idea if she is going to come out swinging just like she went in.
Granted he probably doesn't see it that way, but that doesn't really excuse him.
He can't do that now. Whether he could pre-Mending is pretty different.
Which renders the argument kind of pointless, doesn't it? Sorin sealed Nahiri in the Helvault, but whether or not he could have pulled her back out is something we'll probably never know.
Here's a question; what do you think Nahiri's next step is? Go after Ugin? Return to Zendikar?
She heads to Zendikar in the last story article for Eldritch Moon, wounded severely from her fight with Sorin and prepared to die with her plane. But to her surprise the Plane is devoid (hehehe) of Eldrazi titans and is actually beginning to recover. This actually unhinges her a bit, as she just spent a fair amount of time enacting a plan of revenge on Sorin that was perhaps less justified than she originally thought...
Meanwhile, Ugin is studying the Eldrazi corpses when a frazzled/wounded/unhinged Nahiri shows up. He asks her where Sorin is, and manages to coax the truth of their fight and the whereabouts of Emrakul from her. Ugin then anxiously leaves for Innistrad, traveling to Markov manner only to find the bloody remains of Sorin's prison. Twist: a few blocks from now we find out Bolas released Sorin from his rock-prison and has sent him on a path to again clash with Nahiri; which will actually be a three-way battle between Nahiri, Ob Nixilus, and Sorin (Because a three-way fight between those oldwakers would probably be epic).
He had around 900 years of pre-mending oldwalker powers to consider whether breaking the Helvault and having to replace it with another chunk of the Moon was worth releasing his student. Even if he couldn't replace the Helvault for whatsoever reasons (whether he doesn't have enough "essence", or the Moon ran out of rocks to be stable)... it was still a matter of prioritizing the "protection of his plane" over his student... a decision he dragged on for 1000 years before Ugin practically made him consider it. I don't think there's anything that could legitimately justify Sorin's callousness/selfishness in prioritizing the Helvault in its entirely over Nahiri.
Before people start jumping on me again for "defending Nahiri", because apparently saying Sorin's evil means so, let me clarify that Sorin's evil does not justify Nahiri's evil in any way, Nahiri is still evil (and more evil now by scale of destruction). I just find that any excuses Sorin could possibly muster up for leaving Nahiri in there for so many years cannot justify his callousness - not even the protection of Innistrad, considering Innistrad was surviving prior to the Avacyn/Helvault anyway.
Okay, I think any more, we're just going round in circles with the same points of view since I doubt little convincing was done on this topic, now to another new topic.
Permeating Mass. Traft "possessing/enhancing" Thalia, giving her relative better immunity to Emrakul's madness and transformation... Emrakul twists biology, that we all know... but spirits are not physical and therefore apparently don't seem to be affected. We all know the Gatewatch's going to save the day, but hypothetically if one could muster enough "good geists", can the plane actually be made "immune" to Emrakul by default?
If this property carries over to other planes as well, do planes like Kamigawa/Theros have natural resistances to Emrakul as well?
Like I said earlier, any argument that's based on whether or not Sorin could/should have released Nahiri are pointless, because we don't know, and probably never will know, if he could have released her from the Helvault.
As for Spirits being immune to Emrakul... dunno. I mean, it's possible that Kamigawa would fare better against Emrakul than Innistrad has, but we'll, again, never know unless the Titan breaks free of the Moon. We can speculate, but that's also all it'd be; speculation.
And Theros would likely have an issue if all the biological people are getting warped, it should alter the spirit side too. Kamigawa would be better off though I think. Though I'm not sure if either plane possesses people when it comes to spirits.
I'm not an expert about the cards, but others here have pointed that black has a really hard time destroying artifacts. Even Liliana had to blackmail the help of Thalia to break the Helvault, so I think the bigger stretch could actually be to conclude he could.
If Sorin was mono-Black that would seem like a fine conclusion. He's not though. He's got White. Look at Anguished Unmaking for a very recent example of his Artifact removal.
Let it go. We simply don't know as Mangod has pointed out. Its speculation.