Nishkallan of the broken kin

First Strike, Lifelink, Shroud.
Whenever a Vampire or an Immortal you control
die, put a "mourn" counter on Nishkallan of the
broken kin.
Nishkallan of the broken kin gains +2/-1 for each "mourn" counter on her.
Nishkallan of the broken kin can be casted for her
recto side mana cost plus {2}.