Vanish Into Memory
Not only does it have a really bad-ass name when you're casting it on Dark Depths token, (You were to be feared... once. Vanish into Memory.) but it's a great card.
I play mostly EDH, and I've gotten more wins off this card than any other. It's one of the best cards in UW and even has a spot in my 5c goodstuff deck.
Cast it on your creatures to save them, draw cards and re-use ETB effects. Cast it on opponents tokens as removal + card draw. Cast it on their Avacyn, Angel of Hope to get 8 chances to find a planar cleansing and path to exile. It's never been a dead card for me, and I don't even play combos (where digging 7-8 cards deep while delaying a threat can turn a loss into a win very often.
Not to mention I've had more than a handful of Omniscience -> Kozilek, Butcher of Truth -> Vanish into Memory and win that turn off of +16 new cards with Omniscience.
Good luck to everyone! I just hope I win and this doesn't Vanish into Memory.
(I sure hope that pun didn't disqualify me. 
)Edit: To site owners and such. Where the term 'UW' is above I had it in mana tags and it appeared at the start of the paragraph. Might want to look into that.
That's what makes me super mad though. The RC don't ban problem cards. Hermit Druid has been out and terrible for years, Ad Nausium and Doomsday exist and plague tables, Cyclonic Rift is a card only blue and answer and has hordes of people wanting to ban it, as does Dead Eye Navigator. Sol Ring has been included in every commander pre-con for god's sake. That card is comparable in power to a mox. Don't even get me started on Mana Crypt. (The combination of which has let me hard cast Kozilek turn 2 more than once, or play crucible of worlds and strip mine turn 1 many times.)
It's just plain untrue. I've never heard of obsidiandice before but I can't help but dislike him now that my first introduction to him was this BS pile of opinions stated like they're facts. (I've never once thought tuck was unintuitive for example.)
Honestly this rule change has made me lose most of my passion for the format. The RC is so out of touch with their player base it hurts. I hope wizards decides to take over, because the RC has lost my trust and respect.
To preempt potential arguments: So far I've yet to talk to anyone who liked the idea. (including 3 people who have played for more than 10 years and quite a few others with less experience.) We can't ignore it however because we play at a card shop and even though the management disagrees with the change he feels it's unfair to have house rules because it would be off putting to new players or require changes to their decks for our 1 store specifically.)
Seriously though, try flash. I've got such an insanely high across the board winrate in games where people underestimate how good leyline of anticipation or vedalken orrery is and let them live. 10/10 would land go again.
As a note: I removed Serra Ascendant for Vengeful Archon. T1 Serra Ascendant drew too many groans for me to play in any deck but my most competitive, where it now lives.
I've gotten mixed responses from various judges on that. It's great either way, but most people assume that it's either exile and risk a stifle or move to general zone and need to recast.
Bant Charm: This is literally the best removal spell in the format, and probably top 5 instants overall. The utility is insane and tucking a general can be one of the most painful plays in existence.
Vanish into Memory: This card is so insanely good. If you use it on a general 99% of the time they'll just send it to the general zone for fear of you stifleing the delayed return trigger and having their general exiled for the remainder of the game. (Which is a fairly good way of dealing with it. :p)
Even if you can't you get a huge tempo swing and a lot of cards. Tajic will net you at least 5 cards as long as you waited for him to swing. (More if he's equipped.) and Khemba will almost certainly have a bunch of gear to make you gain a lot of positive card advantage.
Try both if you're in the colors. You won't be disappointed.
You're going to hard a hard time targeting Narset without Glaring Spotlight.
Narset probably won't be banned though. If you counter her once or twice she'll be almost out of the game if the deck is centered around her, and if it's not then she's hardly the problem. You're almost never going to play her before t4, so everyone will have at least 3 mana to counter you with. Not to mention that some cards like Elesh Norn, Pestilence and Sheoldred can make it impossible to use her while they're on the field.)
God I love blue.
That's not what I'm saying. I'm saying to erreta some creature types onto creatures where it makes sense, not remove creature types. Elephant Ambush still makes Elephants, but you also draw cards from Wirewood Savage. Because they're Elephant Beasts now instead of just Elephants.
I don't think there are any MTG knights that aren't soldiers, and even if there are you could just not add it to those ones.
This answer is extremely good and informative! While I might not agree with the logic completely, it's nice to at least see this addressed in some manner by wizards.
Overall I'm not really surpised most people disagree with me, but seeing your opinions and ideas is interesting. That's why I opened this thread. To all those that have or will reply: Thanks!
Also sorry for placing it in EDH. When you said that I was like... huh? Then I looked and realized you were right. My mind was blown.