Ugin, the Ineffable
Oracle Text
Colorless spells you cast cost
less to cast.+1: Exile the top card of your library face down and look at it. Create a 2/2 colorless Spirit creature token. When that token leaves the battlefield, put the exiled card into your hand.
-3: Destroy target permanent that's one or more colors.
But let's understand: When the Monitor united the five remaining matter universes, a lot of people died. (And a lot of them frankly deserved it. Looking at you, Earth-2's Robin.) But if not for that, the Anti-Monitor could've destroyed all the universes.
Thus, you have a being who is above morality. And in both of the Big Two, this is normal for cosmic entities. (Over in Marvel, The Living Tribunal is similar: The actual Infinity War comic is where Adam Warlock is on trial for failing to kill Eternity. Note that killing half the universe is not in the Living Tribunal's jurisdiction, but failing to kill the personification of the universe is.) You're also issued an "above morality" license if you're from the future and know how this turns out or have some sort of precognition and...know how this turns out. (So, we blame Star-Lord and not Strange, even though both helped Thanos in their own way, and Strange did it deliberately. Strange has the benefit of having seen 14000605 futures.)
Note that when I say above morality, I don't mean they're not dicks, because I assure you, they are. Characters with a more limited perspective will absolutely loathe them.
Moral neutrality is the act of looking out all of the possible outcomes & determining the best outcome. This involves a lot of research into the nature of existence. In the case of Ugin with the Eldrazi, simply destroying the Eldrazi could have had significant repercussions on the Multiverse that was unforeseen.
The point is, there are a lot of moving parts. Are we certain that doing something is going to have the desired outcome, or are we just making things worse?
True morality cannot be measured. Therefore to be above it is to live without regret for your actions.
1. You posited that Ugin was callous about the destruction and death faced by others, because he appeared to not be very passionate about destroying them. This is not the case. He believed, and once again I emphasize whether he was correct in his calculations is irrelevant to his character, that destroying the eldrazi would be a waste of time - they would simply appear again. In other words you were simply cutting off the tail of a lizard, and it would soon regrow. This is decidedly different from "let's not destroy these things because they're more interesting alive than dead, and I don't care that more people die this way".
2. "Sealing them categorically does not work." You display a lack of knowledge of the lore here. I say this with no prejudice, please do not be offended. The reason the seal "failed", was not because it did not "work". The seal was removed, very deliberately, by a nemesis of Ugin. It's been a while since I read the story but if my memory serves me right, there had to be 3 planeswalkers in the eye, someone had to wield the "colorless flame". The 3 planeswalkers were Jace, Chandra and Sarkhan, all lured to the Eye under Bola's plan. Very naughty, that Bolas.
3. "Note the 2 titans are dead". I do not note this. I do note, however, that just as Ugin pointed out, the projections of the Eldrazi from within the blind eternities were incinerated by Chandra. I do note also that the lack of indication that "they would ever return" does not mean a "certainty that they will never return".
So what you said about Ugin *is* pretty malicious. It's perfectly possible to say malicious things about a character, fictional or otherwise. Given what of most you say is untrue, I'd say my description of your post as "malicious" is accurate. You are free to counter my points, but you can't overwrite the facts regarding the Eldrazi.
2) Ugin said to seal them up. He said that they may serve some purpose in the Multiverse that we did not yet know. These are not good arguments when you are the ones being dusted by the Eldrazi. Note that the other two Titans are dead. They weren't just a waste of time. There's no indication so far as I know that they will be coming back.
3) Ugin preached understanding of the unknowable entities devouring planes whole. Sealing them categorically does not work. This was proven many times. It's not a solution. His arguments were to do something that would, at best, selfishly postpone the inevitable return of the Eldrazi, and possibly it would happen at a time that the Gatewatch wouldn't be there to stop them. Like Gandalf put forth at the Council of Eldrond, the goal was not just to take into account one battle, or even one generation. It was to end the threat forever. There can be no victory by imprisonment. This is fact shown throughout the story.
Now, if you are going to overreact with absurd offense taken on behalf of a relatively flat fictional character, I'm not going to engage with you anymore. If you want to discuss things with a more reasonable stance, I'm game, but otherwise, feel free to ignore me, and I'll definitely do the same with you. Thanks.
He said killing them was pointless because the physical forms seen on the planes were merely projections of their true selves out in the Blind Eternities - ergo, you could destroy the physical forms but you were wasting your time. Victory would be achieved by imprisoning them.
Whether he was right or wrong regarding this calculation is irrelevant. He was NOT asking people to "accept" the Eldrazi, as you so maliciously posit.
Ugin's the guy who counseled not destroying the Eldrazi that were leaving everything lifeless wastelands in their wake. I mean, sorry, Ug, but prey animals are not obliged to simply roll over and die for predators, and sealing the Eldrazi just doesn't work. They may serve a purpose in the Multiverse, yes, as part of this great magical ecosystem, but it doesn't (and shouldn't) render them immune to the consequences of their actions—which includes decimating whole worlds.
TBH, I think Ugin is above petty notions of morality.
Although calling Ugin a good guy is arguably a stretch. I get the feeling he works on Blue and Orange Morality, more worried about the Multiverse as a whole than its constituent planes--basically, unable to see the trees for the forest, while chastising others for the obverse. His -3 also makes me wonder if, in his (putative?) transcendence, he's grown to scorn how mana tends to separate into colors. I really don't think his opinion of planeswalkers, quite possibly the Spark in general, is going to get any better on seeing Sorin and Nahiri's grudge, and how it started (caring "too" deeply about their home planes). I'm even worried about whether he'll seek to revert the Mending. I don't think he'll begrudge Teferi when the Multiverse collapsing was the only other option, but I still have my doubts about how he'll react to the discovery that the Blind Eternities changed in a fundamental, albeit subtle, way. Note that I doubt Ugin will be upset about not being as powerful as before.
I hope the novel shows him interacting with Niv-Mizzet in some way.
EDIT: Sure enough, the leaked Spanish card uses "inefable". It's in the sense of "indescribable".
Hmm... that would make me wonder if tron would want it to ramp a little harder.... meh, maybe not.
In Spanish, "unspeakable" is "innombrable". Something that cannot be described, "inefable" is "ineffable" in English.
Also if i recall correctly, Ugin wanted to imprison the eldrazi because they didn't know what ramifications killing them might have. It was known it wasn't an eternal solution, but should have been one they could have maintained indefinitely.