Mutinous Massacre

反（はん）乱（らん）の大（だい）虐（ぎゃく）殺（さつ）

Sorcery

Choose odd or even. Destroy each creature with mana value of the chosen quality. Then gain control of all creatures until end of turn. Untap them. They gain haste until end of turn. (Zero is even.)

Kavaron's degradation poisoned many hearts, which the Monoists were happy to exploit.