Cyberdark Keel [CDIP-EN003] Ultimate Rare P-212 You can only activate 1

You can only activate 1 "The Hidden City" per turn

If it's your first weapon attack this turn

prevent 1 arcane damage that source would deal

(It's an item with "Action - [4 Resource]

Cyberdark Keel [CDIP-EN003] Ultimate Rare P-212 You can only activate 1Set: 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.