Card Rules: Rulings powered by The Netrep API. For 'Ancient Gear Castle' , 'Set' means to Set from the hand. It does not include using 'Book of Moon' or 'Guardian Sphinx' to flip a monster face-down or Special Summoning a monster in face-down Defense Position with 'Cyber Jar' or 'The Shallow Grave'. [Re: Geartown] While 'Geartown' is active you can Tribute 'Ancient Gear Castle' with 1 Counter to Tribute Summon 'Ancient Gear Golem'. Passcode: 92001300 Set: Structure Deck Card Number: SD10-EN023 Rarity: Common Attribute: Spell Card Text: Each face-up 'Ancient Gear' monster gains 300 ATK. Each time a monster(s) is Normal Summoned or Set put 1 counter on this card. If you Tribute Summon an 'Ancient Gear' monster you can substitute this card for a Tribute(s) if the number of counters is equal to or greater than the number of required Tribute(s). Card Type: Continuous Spell Name: Ancient Gear Castle Edition: 1st