Oath of Revan

When Oath of Revan enters the battlefield, you
may search your library and/or graveyard for a
card named Revan, Deadly Warrior reveal it and
put it into your hand. If your library was
searched this way shuffle it.
Whenever you activate a loyalty ability of a
Revan planeswalker you control, creatures your
opponent controls get -1/-0 until end of turn.