Cyberdark Keel [CDIP-EN003] Ultimate Rare WTR042-C at the start of the

at the start of the Damage Step: You can destroy that monster

Series 8: Android Duality - Expert Deck 02 contains:

While this card is in face-up Defense Position

During the End Phase of the turn you activated this card

Cyberdark Keel [CDIP-EN003] Ultimate Rare WTR042-C at the start of theSet: Cyberdark Impact Card type: Effect Monster Rarity: Ultimate Rare Attack: 800 Defense: 800 When this card is Normal Summoned, select 1 Level 3 or lower Dragon Type monster in your Graveyard and equip it to this card. This card gains ATK equal to the equipped card''s ATK. When this card destroys an opponent''s monster by battle, inflict 300 damage to your opponent. If this card would be destroyed by battle, the equipped monster is destroyed instead.