Card Rules: Rulings powered by The Netrep API. You cannot choose an effect that cannot be performed (such as choosing to destroy a Spell or Trap Card when there are none on the field). [Re: Butterfly Dagger - Elma] If 'Butterfly Dagger - Elma' is destroyed during the Damage Step , such as by the effect of 'Cliff the Trap Remover' you cannot activate the effect that returns 'Butterfly Dagger - Elma' to the hand. [Re: Mustering of the Dark Scorpions] If you have 2 copies of 'Cliff the Trap Remover' (for example) in your hand you can Special Summon 1 of them with 'Mustering of the Dark Scorpions'. You can Special Summon him even if you already have 'Cliff the Trap Remover' on your side of the field from before you activated 'Mustering of the Dark Scorpions'. Passcode: 06967870 Set: Dark Revelations 1 ATK/DEF: 1200/1000 Card Number: DR1-EN133 Monster Type: Warrior Rarity: Common Attribute: Dark Card Text: When this card inflicts Battle Damage to your opponent's Life Points you can select and activate 1 of the following effects: - Destroy 1 Spell Card or Trap Card on the field. - Send 2 cards from the top of your opponent's Deck to his/her Graveyard. Level: 3 Card Type: Effect Monster Name: Cliff the Trap Remover Edition: Unlimited