Killer Bunnies and the Quest for the Magic Carrot: Bunnies the Gathering Promo Card

Psi Series Card #10 Text says: May be used once by a player to pat up to six bunnies in The Bunn Circle (one of each color). The player must un-pat one bunny at the start of each turn unti they are all back. Patted bunnies may not play aggressive cards.