The Disciple of Vess

Whenever The Disciple of Vess attacks, you may put a planeswalker card from your hand onto the battlefield. If you don’t, create a token that’s a copy of a Liliana planeswalker chosen at random.
(There are currently thirteen. Perhaps look up the list and roll a D20?)

Flavor Text: PERSON

Card Details:
Set: Unknown Event
Collector Number: RB54