Increase the ATK of each face-up monster on the field that includes "Ancient Gear" in its card name by 300 points. Each time a monster(s) is Normal Summoned or Set, put 1 counter on this card. If you Tribute Summon a monster that includes "Ancient Gear" in its card name, 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)..
![Ancient Gear Castle (UTR) [SOI-EN047] Ultimate Rare | Cracking-Singles](http://www.cracking-tcgsingles.com.au/cdn/shop/products/19192f7b-9fa4-5418-9fb9-1bc737ac0adb_874ec775-c78d-48cb-9eba-ad8d5e398ec3.jpg?v=1647912079)
