Dark Cavalry [DUPO-EN002] Ultra Rare Rock if "Golden Castle of Stromberg"

if "Golden Castle of Stromberg" is in the Field Zone: You can target 1 card on the field

Set: The Lost Art Promotion Card type: Effect Monster Rarity: Ultra Rare Attack: 1000 Defense: 1000 If you have "Right Leg of the Forbidden One"

Set: Code of the Duelist Card type: Effect Monster Rarity: Short Print Attack: 2700 Defense: 2400 You can Special Summon this card (from your hand) by paying 3000 LP

Set: Shining Victories Card type: Pendulum/Effect Monster Rarity: Ultra Rare Attack: 1950 Defense: 0 At the start of the Damage Step

or Extra Deck

Dark Cavalry [DUPO-EN002] Ultra Rare Rock if "Golden Castle of Stromberg"Set: Duel Power Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 2800 Defense: 2300 "Dark Magician" + 1 Warrior monster Gains 100 ATK for each Spell Trap on the field and in the GYs. If this card attacks a Defense Position monster, inflict piercing battle damage. When a card or effect is activated that targets a card on the field (Quick Effect): You can discard 1 card; negate the activation, and if you do, destroy it.