In my experience, the Game Changers that win the most games are the ones that generate persistent card advantage: Rhystic Study, Smothering Tithe, Necropotence
Death is a Reanimate for one more mana, but we know how good reanimate has been in tournaments, and of course, Life // Death followed that dynamic in due course after it was printed in Apocalypse
This card has won me many games, and I feel like you should try it if you havent already
If its a permanent card, they put it onto the battlefield. You can even use this on your own stuff if you have faith that the top card of your library is something powerful
Battle of Wits sees almost zero play in Commander
(After your opponent declares an attack, you may rest this card to make it the new target of the attack.) Card Set(s) Regionals Wave 3 CARD VIEW OP05-091 | SR | CHARACTER Rebecca Attribute Wisdom Block icon 2 Effect [Blocker] [On Play] Add up to 1 black Character card with a cost of 3 to 7 other than [Rebecca] from your trash to your hand