Radagast the Brown: The Lord of the Rings: Tales of Middle-earth

Whenever Radagast the Brown or another nontoken creature enters the battlefield under your control, look at the top X cards of your library, where X is that creature's mana value. You may reveal a creature card from among them that doesn't share a creature type with a creature you control and put it into your hand. Put the rest on the bottom of your library in a random order.