K'rrik, Son of Yawgmoth

({p/b} can be paid for either 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 am Robin. Son of Batman"