Banefire Golem

Banefire Golem
UnitDemonCost: 6ATK: 7 HP: 7
Upkeep: Sacrifice a unit. If you do, deal 1 damage to each opposing unit, hero, and building.
BlackDemonology Tech II

Card-Specific Rulings
You can sacrifice him for his own effect. If you control no other units, you MUST sacrifice him since the effect isn't optional. You'll still deal the damage. — Sirlin