Battle of Wits 
Enchantment
At the beginning of your upkeep, if you have 200 or more cards in your library, you win the game.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Enchantment
At the beginning of your upkeep, if you have 200 or more cards in your library, you win the game.