Wrathion, the Black Emperor

{2}{b}{r}: Wrathion, the Black Emperor inflicts Creeping Madness to all opponents for 2 turns.
If a creature attacks, they gain a stack of Slow. If
any creature has 5 or more stacks of Slow, destroy
that creature. Use this only once per phase.
{2}{r}{r}{r}: Wrathion uses Burning Cataclysm.
Add 2 stacks of Slow to all creatures.
{3}{b}{r}: Wrathion uses Smoke and Mirrors. You
are unattackable for 1 turn. Clear all stacks of
Slow from all creatures. Wrathion
changes phase.