Golden Castle of Stromberg [BLRR-EN010] Secret Rare Phantom Nightmare You can only use this

You can only use this effect of “Sinister Serpent” once per turn

and that opponent's monster

Set: Spell Ruler Card type: Normal Spell Rarity: Ultra Rare Increase the ATK of a monster equipped with this card by 1000 points When this card is sent from the field to the Graveyard

Set: Speed Duel: Tournament Pack 6 Card type: Fusion/Effect Monster Rarity: Ultra Rare Attack:

Golden Castle of Stromberg [BLRR-EN010] Secret Rare Phantom Nightmare You can only use thisSet: Battles of Legend: Relentless Revenge Card type: Field Spell Rarity: Secret Rare Once per turn, during your Standby Phase, you must banish 10 cards from the top of your Deck, face down (this is not optional), or this card is destroyed. During your Main Phase: You can Special Summon 1 monster that specifically lists the card "Golden Castle of Stromberg" in its text from your Deck. You cannot Normal Summon Set the turn you activate this effect. You