- Dark Seducer is summoned by Madness Beckons card that was only available during the Festival of Madness and was intended to promote the Isle of Madness expansion.
- Available in Isle of Madness – Act III.
Dark Seducer drains not only when she attacks, but also when attacked. Every time an enemy creature attacks Dark Seducer, the player will gain 7 health, unless the creature has Lethal. Dark Seducer can be a defensive tool against a deck with a fast, aggressive playstyle as she can regain the player a lot of health, potentially swinging the game back to the player's favor.