Harpie's Feather Duster [SDD-003] Secret Rare BW85 you can activate this card

you can activate this card from your hand

Set: Duel Terminal 6 Card type: Effect Monster Rarity: Super Rare Attack: 2000 Defense: 1700 This card gains 300 ATK for every "Dark Magician" or "Magician of Black Chaos" in any Graveyard

If it was a Trap Card

Set: Star Pack 2013 Card type: Trap Card Rarity: Starfoil Rare When you take battle damage from your opponent's direct attack: Take control of the 1 face-up monster your opponent controls with the highest DEF

Harpie's Feather Duster [SDD-003] Secret Rare BW85 you can activate this cardSet: Stairway to the Destined Duel Card type: Normal Spell Rarity: Secret Rare Destroys all of your opponent's Magic and Trap Cards on the field.