F/E Monster Dark Fiend 12 0 0 "Uria, Lord of Searing Flames" + "Hamon, Lord of Striking Thunder" + "Raviel, Lord of Phantasms" This card can only be Special Summoned from your Fusion Deck by removing from play the above cards on your side of the field. (You do not use "Polymerization"). This card cannot be destroyed by battle. While this card is face-up on the field, increase the ATK of this card by 10000 points during your turn only.