Valkyrion the Magna Warrior [SDD-001] Secret Rare The Secret Forces Activated abilities of sources with

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities

but stray no closer

Whenever Stuffy Doll is dealt damage

you may reveal it and put it into your hand

Valkyrion the Magna Warrior [SDD-001] Secret Rare The Secret Forces Activated abilities of sources withSet: Stairway to the Destined Duel Card type: Effect Monster Rarity: Secret Rare Attack: 3500 Defense: 3850 This card can only be Special Summoned by offering 'Alpha the Magnet Warrior', 'Beta the Magnet Warrior', and 'Gamma the Magnet Warrior' from your hand or the field as a Tribute. If 'Alpha the Magnet Warrior', 'Beta the Magnet Warrior', and 'Gamma the Magnet Warrior' exist in the Graveyard, you can offer this card as a Tribute to Special Summon