Hunter Knight's Readiness

Destroy target creature. Gaze into the Abyss.
(As you gaze into the Abyss, you get an emblem named The Abyss if you don't have one. Then
your emblem triggers its next ability.)

Whenever a creature you don't control enters,
if it entered from a graveyard or was cast from
a graveyard, you may return this card from
your graveyard to your hand.