Tomb of Xezpeth

At the beginning of your upkeep, put a charge counter on Plane's Core. Then, choose one:
-Sacrifice a creature.
-Lose 2 life.
-Spells you cast this turn cost {1} more.
At the beginning of your upkeep, if Tomb of Xezpeth has twenty or more charge counters on it, you win the game.
Many sacrifices were made for sake of greater power.