Lurker Demon

Incinerate (At each of your upkeep steps, deal 1 + # of Incinerate counters on this creature. Then grant the creature an Incinerate token)
If Lurker Demon was damaged this turn, remove an Incinerate counter
If Lurker Demon is destroyed, deal it's power to a target enemy creature as damage. If that creature is destroyed, return Lurker Demon to your battlefield.