Thresh, The Soul Warden

Menace, Skulk, Hexproof, Lifelink
Spirit Creatures get +1/+2 and gain Menace
{x}{w/u}{w/b}{u/b}, Reveal the top X cards of your library,
Exile every creature card revealed this way
and the rest on the bottom of your library in
any order
{3}{w}{u}{b},{t} Return every creature card exiled by Thresh, The Chain Warden to the battlefield