Lover's Haunt

Haunt (When this creature dies, exile it haunting
target creature.)
When Lover's Haunt enters the battlefield, put
an affection counter on target creature.
Whenever Lover's Haunt or a creature with an affection counter on it dies, you gain 2 life
and each opponent loses 2 life.
When the creature haunted by Lover's Haunt
dies, you may put Lover's Haunt into your hand
from exile.