Will of the Abzan is a rare Sorcery card from Tarkir: Dragonstorm Commander (TDC), collector number 71. Current market price: $5.84, TCGplayer market prices via Scryfall.
Choose one. If you control a commander as you cast this spell, you may choose both instead. • Any number of target opponents each sacrifice a creature with the greatest power among creatures that player controls and lose 3 life. • Return target creature card from your graveyard to the battlefield.