Rak, For Who is Aimless

+1: Exile a card at random from your hand. Chose a target. Deal X damage to it, where X is the CMC of a random card exiled with Rak.
-X: -X: Chose X cards exiled with Rak. You can cast those cards this turn.
: If Rak exiles the last card in your hand, you may return any number of cards exiled by Rak to your hand.