Elemental Hero Magma Neos [TAEV-EN043] Secret Rare

"Elemental Hero Neos" + "Neo-Spacian Flare Scarab" + "Neo-Spacian Grand Mole" This card can only be Special Summoned from your Fusion Deck by returning the above cards you control to the Deck. (You do not use 'Polymerization'.) This card gains 400 ATK for each card on the field. This card returns to the Fusion Deck during the End Phase. When this card is returned to the Fusion Deck by this effect, return all cards on the field to their owners' hands.