Mofi, Horror of the Undercity

Whenever Mofi, Horror of the Undercity attacks,
you may sacrifice a creature if you do create two
green and black 4/4 token creature horror with
deathtouch.
Sacrifice a creature: You gain life equal to its
power.
''She's like nothing you can imagine, and her pets their
even worse - Zamark Leonja, Izzet Statiscaster''