Arvad, Partner in Crime

Madness {2}{b}{r}
Whenever you discard a nonland card, you may
pay 2 life. If you do, it gains madness equal to its
mana cost.
Discard three cards: Return Arvad, Partner in
Crime to the battlefield tapped under its owner's control. You can't cast spells from exile this turn.
"If it's crime time, it's my time!" -Arvad