When Brutalizer Exarch enters the battlefield, choose one — Search your library for a creature card, reveal it, then shuffle your library and put that card on top of it; or put target noncreature permanent on the bottom of its owner's library.
Flash (You may cast this spell any time you could cast an instant.)
When Deceiver Exarch enters the battlefield, choose one — Untap target permanent you control; or tap target permanent an opponent controls.
When Entomber Exarch enters the battlefield, choose one — Return target creature card from your graveyard to your hand; or target opponent reveals his or her hand, you choose a noncreature card from it, then that player discards that card.
When Inquisitor Exarch enters the battlefield, choose one — You gain 2 life; or target opponent loses 2 life.
When Tormentor Exarch enters the battlefield, choose one — Target creature gets +2/+0 until end of turn; or target creature gets -0/-2 until end of turn.