Paramight,The One Who Creates

Flying, When Paramight dies return it to the
battle field transformed under your control,
Choses one, you lose 1 life or sacrifice a creature.
{b}{x}:Return a creature from any graveyard to
battlefield, it becomes a phyrexein along with it's
other types as long as it's mana value is equal or
less than X. You may activate this ability
once per turn.