Spawn of Mayhem
Creature - Demon | Power/Toughness: 4 / 4 (CMC 4)
Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)
At the beginning of your upkeep, Spawn of Mayhem deals 1 damage to each player. Then if you have 10 or less life, put a +1/+1 counter on Spawn of Mayhem.