Gindur, Polymorph Sorcerer

When you cast Gindur, Polymorph Sorcerer, reveal
cards from the top of your library until you
reveal three nonhuman creature spells. Exile the revealed nonhuman creature spells and put a polymorph counter on each. Put the rest of the revealed cards on the bottom of your library in a
random order.
{1}: This creature becomes a copy of target exiled creature, with a polymorph counter. It gains this ability, its name is Gindur, Polymorph Sorcerer and
it's a legendary polymorph creature.