K'rrik, Son of Yawgmoth

( {p/b} can be paid for either {b} or 2 life.)
Lifelink
For each {b} in a cost, you may pay 2 life rather
than pay that mana.
Whenever you cast a black spell, put a +1/+1
counter on K'rrik, Son of Yawgmoth.
"I always knew he'd make an impact"
-Yawgmoth