Sacrifice Play (21) (Unstable)

Rarity:	C
#:	21
Creature Type or Sub Type:	Instant
Rules Text Contains:	A person outside the game chooses an attacking or blocking creature target opponent controls. That player sacrifices that creature.
Flavor:	In recursive chess, one piece can capture another only after beating it in a game of recursive chess.
Set:	Unstable
Number:	21