A Goat, a Duck, and a Sheep (a pawn each) appear on random empty squares in your half for 8 of your turns. They cannot move or capture, they just block, then they wander home.
You draft Petting Zoo in Buff mode. Instant: it takes effect the moment you draft it.
As a pieces card, it summons, revives, promotes, or converts a piece.
“The gate opens and professionalism leaves the board.”