Zidja, Curious Mossdog

When you cast your second nonhuman spell
each turn, you may each your library for a
beast, bear, dog, elemental, fungus, or plant
card or a creature card with power and
toughness 2, or with unequal power and
toughness and exile it, then shuffle. Then,
you may then pay {1}{g}. If you do, put it
into your hand or graveyard. Otherwise, put
it on the bottom of your library.