Big Hat Logan

{u}{b}{r},{t}: Put any number of cards you own in
exile with different types into your Graveyard.
Whenever one or more cards from your
graveyard are exiled, you may search your library
for a card, put that card into your graveyard then shuffle your library.
Cards in your graveyard, and cards you own in
exile, cannot be the targets of spells or abilities.