Rien, the Mad King

Rien, the Mad King enters the battlefield with a Madness Token on it.
Creatures you control with Madness tokens on
them have Hexproof.
Whevener a creature is blocked by Rien, the Mad
King, put a madness token on that creature.
{2}{b}Take control of target creature with a
Madness Token on it.
"Sadly, magic doesn't cure madness."
-Jace Beleren