Gozer the Gozerian

Indestructible, unblockable.
Anytime Gozer would be the target of a spell or ability you may sacrifice Gozer. If you do, search your library for up to three creature cards and reveal them. Your opponent chooses one of the revealed cards. You may cast the chosen card without paying its mana cost. Shuffle the other revealed cards back into your library.
"Are you a god?"