The Spark Shadow

At the beginning of your end step, you may
return a planeswalker card from your graveyard
to the battlefield. If you do, activate up to one of
its loyalty abilities, then exile it. (The planeswalker
must have enough loyalty to activate that ability.)
{1}{b}{b}, Sacrifice a planeswalker: Return this
from your graveyard to the battlefield.
Menace