Conjuro
Por cada jugador, elige una carta de criatura en el cementerio de ese jugador. Pon esas cartas en el campo de batalla bajo tu control. Son Zombies negros además de sus otros colores y tipos y ganan la habilidad de descomposición. (Una criatura con la habilidad de descomposición no puede bloquear. Cuando ataque, sacrifícala al final del combate.)
If any creature cards put onto the battlefield this way become permanents that aren't creatures because of another effect, those permanents won't be Zombies, but they will gain decayed.
Decayed does not create any attacking requirements. You may choose not to attack with a creature that has decayed.
Decayed does not grant haste. Creatures with decayed that enter the battlefield during your turn may not attack until your next turn.
Decayed 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."
The creatures will enter the battlefield simultaneously. They will see each other enter for the purposes of triggered abilities.
Once a creature with decayed attacks, it will be sacrificed at end of combat, even if it no longer has decayed at that time.