Exar the Firemage

+2: Deal 1 damage to one non-player target.
-2: Deal 3 damage to any target. Exar the Firemage cannot be the target of instants until end of opponent's turn.
-8: Deal 10 damage to up to 3 targets. Then, if you control five or more red non-land permanents, instead deal 12 damage to up to 3 targets.