Rise of the fallen

Rise of the Fallen

 Action

+1 stealth action. Requires an infernal minion. Unique.
Put this card in play. Your prey burns 1 pool at the end of each action in which you have burned corruption counters. Any Methuselah can burn a vampire he or she controls with corruption counters during his or her untap phase to burn this card.

Artist(s): Ginés Quiñonero

Is this card legal for play? I don't remember if it was for some storyline or something.. .