I like Jabilac's suggestion of
Young Pyromancer, largely because of
Collateral Damage. With so few creatures, there's a decent chance that a top-decked
Collateral Damage is just a
dead card, but with Pyromancer, you should have some token fodder to sac to it, or just chuck the pyromancer himself. You probably wouldn't need a whole playset, but 2 or 3 would be plenty to make those Callateral Damage live more often.