Valkyrion the Magna Warrior (SDD-001) [Stairway to the Destined Duel]

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 these 3 cards to the field.