Valkyrion the Magna Warrior (LCYW-EN021) - Legendary Collection 3: Yugi's World 1st Edition

This card cannot be Normal Summoned or Set. This card can only be Special Summoned by Tributing "Alpha The Magnet Warrior", "Beta The Magnet Warrior", and "Gamma The Magnet Warrior" from your hand or your side of the field. You can Tribute this card to Special Summon "Alpha The Magnet Warrior", "Beta The Magnet Warrior", and "Gamma The Magnet Warrior" from your Graveyard.