Usurp the Shadow Throne (Rainbow Foil)

Viserai Specialization

If you've usurped this turn, this costs 6 resource less to play and you may play it from your banished zone.

When this hits a hero, turn all cards in their banished zone face-down. They lose X life and you gain X life, where X is the number of cards turned face-down this way.

Blood Debt