Haunting Memories

Whenever a creature controlled by enchanted
opponent dies, return it to the battlefield under
your control, it is a black spirit in addition to its
other colors and types and gains "Sacrifice a
creature and pay 4 life: This creature's controller
sacrifices it. Any enchanted player may activate
this ability."
"Your allies have fallen, and you are alone. Pity,
your friends won't remember you when they wake in
service to me." - Rema, Songstress of Malady.