Corvo, Wanted Assassin

{p/b} Incendiary Bolt: Deal 3 damage to
target opponent, Creature or planeswalker,
(Ignore Ward)
{p/w}{p/w} Devouring Swarm: Summon
three white 2/2 Rat creature tokens with
"{t} Eat: Sacrifice this creature gain 2 mana
of any colour."
{ut} Pay 1 life: Corvo, Wanted Assassin gets
+1/+1 until your next end step.