For each player, choose a creature card in that player's graveyard. Put those cards onto the battlefield under your control. They're black Zombies in addition to their other colors and types and they gain
decayedDecayed represents a static ability and a triggered ability. “Decayed” means “This creature can’t block” and “When this creature attacks, sacrifice it at end of combat.” (CR 702.147). (A creature with
decayedDecayed represents a static ability and a triggered ability. “Decayed” means “This creature can’t block” and “When this creature attacks, sacrifice it at end of combat.” (CR 702.147) can't block. When it attacks,
sacrificeTo sacrifice a permanent, its controller moves it from the battlefield directly to its owner’s graveyard. A player can’t sacrifice something that isn’t a permanent, or something that’s a permanent they don’t control. Sacrificing a permanent doesn’t destroy it, so regeneration or other effects that replace destruction can’t affect this action. (CR 701.21) it at end of combat.)