Gisela, Neverseen Leader

+3: Target Elf named Sophie Foster gets -6/-4 and loses all abilities until your next upkeep.
-4: You may summon target Neverseen Elf from your hand to the battlefield tapped.
-10: you gain an emblem saying, "If Sophie Foster, Fitz Vacker, or Dex Diznee is in a graveyard during your end step, you win the game.