Abyssal Gatekeeper | Magic: The Gathering
Formats Abyssal Gatekeeper is Legal in
Official Oracle Text for Abyssal Gatekeeper
—Gerrard of the Weatherlight
Official Rulings for Abyssal Gatekeeper
4/1/2008 : The player whose turn it is chooses a creature to sacrifice, then each other player in turn order chooses a creature to sacrifice, then all chosen creatures are sacrificed at the same time.