Beast Boy, Animal Heart

Imprint—{x}: Search your library and/or hand
for a non-humanoid creature card with mana
value X or less and exile it. If you do, shuffle
each other card exiled with Beast Boy, Animal
Heart into your library. Beast Boy, Animal
Heart becomes a copy of a creature card exiled
with this ability, except it's name is Beast Boy,
Animal Heart, is legendary and has this ability.
(Humanoid creatures includes Dwarves, Elves,
Goblins, Humans, and Vampires.)