Disciple of the Forbidden Spell (DR04-EN136) [Dark Revelation Volume 4]

Effect: When this card is Normal Summoned, Flip Summoned, or Special Summoned, declare different Monster Card Attributes equal to the number of Disciple of the Forbidden Spell(s) in your Graveyard. If this card attacks a monster that has a declared Attribute, destroy the monster without applying damage calculation.