The Wall of Faces

When The Wall of Faces enters the battlefield
and at the beginning of your upkeep, you may
exile target creature card from a graveyard. If
you do, you gain 1 life.
You may activate abilities of cards exiled with
The Wall of Faces by paying an additional 2 life.
"A girl is not ready to become no one. But she is
ready to become someone else."
— Jaqen H'ghar, to Arya