When a monster effect is activated: Detach 1 material from your DARK Xyz Monster; negate the activation, and if you do, destroy that card, then if the detached material was a The Phantom Knights , Raidraptor , or Xyz Dragon card, 1 Raidraptor Xyz Monster you control gains ATK equal to that destroyed monster s original ATK. You can only activate 1 Raidraptor s Phantom Knights Claw per turn.