Mournblade, Who Eats Hearts

Equipped creature gains deathtouch and
"{4}: Equipped creature fights another creature
of your choice". Whenever equipped creature
destroys another creature in combat, put a charge
counter on Mournblade, Who Eats Hearts.
Equipped creature gets +1/+1 for each charge
counter on Mournblade, Who Eats Hearts.
At your upkeep, pay {x} or equipped creature
fights a random creature you control.
Equip/unequip creature {4}