Ancient Gear Dragon [BLTR-EN048] Secret Rare

Cannot be Special Summoned. If you control no monsters, or all monsters you control are EARTH Machine monsters, you can Normal Summon this card without Tributing. When your opponent activates a Spell/Trap Card or effect (Quick Effect): You can send to the GY, 1 Machine monster from your hand or face-up field, or 1 "Ancient Gear Golem" from your Deck; negate that effect. You can only use this effect of "Ancient Gear Dragon" once per turn.