While you control no monsters: Target 1 face-up card you control; destroy it, and if you do, Special Summon 1 "Ancient Gear" monster from your Deck, ignoring its Summoning conditions. You can banish this card from your GY, then target 1 face-up card you control; destroy it, and if you do, Special Summon 1 "Ancient Gear Token" (Machine/EARTH/Level 1/ATK 0/DEF 0). You can only use 1 "Ancient Gear Catapult" effect per turn, and only once that turn.