Sophie's Sentinel

Menace, Detritus {1}{u}
Whenever you cast a spell for its Detritus cost,
create a 2/2 black Zombie creature token.
Sophie built an army out of the remains of monsters
and humanoids she found on the ocean floor and in
the ruins of the Acta empire, not realizing she was
only building an army for the phyrexians to take from
her.