Rakefi, Noble of the Clarion

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
Whenever a Cleric you control attacks alone, you may look at the top X cards of your library,
where X is that creature's power. You may reveal a Cleric creature card from among them
and put it into your hand. Put the rest on the bottom of your library in a random order.