Feitiço
Exile todas as criaturas que você controla, depois revele cards do topo de seu grimório até revelar uma quantidade equivalente de cards de criatura. Coloque todos os cards de criatura revelados dessa maneira no campo de batalha, depois embaralhe o restante dos cards revelados no seu grimório.
Any abilities that trigger during the resolution of Mass Polymorph (such as a creature’s enters-the-battlefield ability) will wait to be put onto the stack until Mass Polymorph finishes resolving. The player whose turn it is will put all of their triggered abilities on the stack in any order, then each other player in turn order will do the same. (The last ability put on the stack will be the first one that resolves.)