Elemental HERO Magma Neos [SHVA-EN034] Super Rare Cybernetic Horizon You can only use each

You can only use each effect of “Valkyrie Erste” once per turn

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

you can Special Summon this card (from your hand) as a Level 4 monster

Set: The Infinity Chasers Card type: Xyz/Effect Monster Rarity: Super Rare Attack: 2100 Defense: 3100 2 Level 7 monsters When this card destroys an opponent's monster by battle: You can attach that monster to this card as material

Set: Hidden Summoners Card type: Quick Play Spell Rarity: Super Rare Target 1 FIRE monster you control and 1 FIRE monster in your GY

Elemental HERO Magma Neos [SHVA-EN034] Super Rare Cybernetic Horizon You can only use eachSet: Shadows in Valhalla Card type: Fusion Effect Monster Rarity: Super Rare Attack: 3000 Defense: 2500 "Elemental HERO Neos" + "Neo Spacian Flare Scarab" + "Neo Spacian Grand Mole" Must first be Special Summoned (from your Extra Deck) by shuffling the above cards you control into the Deck. (You do not use "Polymerization".) This card gains 400 ATK for each card on the field. Once per turn, during the End Phase: Shuffle this card into the Extra Deck.