EDH is all about crazy plays, especially since players have to deal with multiple opponents on every turn - it's the format of absolute blowouts and insane comebacks. ChannelFireball's official spoiler from today enables just those things - it forces your opponents to deal with all of the attackers that were pointed at you! Take a good look at Illusionist's Gambit:
Illusionist's Gambit 2UU
Cast Illusionist's Gambit only on the declare blockers step on an opponent's turn.
Remove all attacking creatures from combat and untap them. After this phase, there is an additional combat phase. Each of those creatures attacks that combat if able. They can't attack you or a planeswalker you control that combat.
There are really no good points of comparison for this card - it could only really be printed in a multiplayer-only product. It has a function in a duel, of course - it's essentially an after-the-fact "taret player skips his or her next combat phase" when there are only two players - but in multiplayer, if you're about to be killed in combat and you cast this, someone else might just lose the game that turn instead. Flavorfully, it seems almost as though it belongs in the Political Puppets red-white-blue deck of the original Commander set. It's hard to evaluate this card without seeing it in play situations, but I can almost guarantee every time it's cast will be crazy.
What do you think of this bizarre combat-manipulation spell? Let me know in the comments.