[REQUIREMENT] Shuffle a total of 4 Dragon and/or Machine monsters from your GY into the Deck.
[EFFECT] Your opponent chooses 1 monster in their GY and Special Summons it to their field in face-down Defense Position, then, you can Fusion Summon by shuffling 1 Dragon monster and 1 Machine monster from your GY into the Deck as material. After this effect is activated, you cannot attack with monsters for the rest of the turn, except with Fusion Monsters.