(https://i.imgur.com/dSlKyf4.png)
If a Machine Monster(s) you control would be destroyed by your opponent (either by battle or card effect) (Quick Effect): You can Special Summon this card and 1 other "Ancient Gear" monster from your hand in face-up defense posistion, and if you do, negate that attack or effect. Once per turn (Quick Effect): You can target 1 monster your opponent controls; You can treat that target as a "Ancient Gear Golem" You control for the Fusion Summon of a "Ancient Gear" monster.
(https://i.imgur.com/MYnM7T7.png)
If this card is sent to the GY for the Fusion Summon of an "Ancient Gear" monster: You can target 1 of the other Fusion Materials used; add that target from your GY to your hand. You can banish this card from your GY: Special Summon 1 "Ancient Gear" monster from your GY, ignoring its Summoning Conditions, and if you Special Summoned a Level 5 or higher "Ancient Gear" monster, it's name becomes "Ancient Gear Golem" while it is face-up on the field. You can only activate this effect of "Ancient Gear Recoverer" once per turn.
(https://i.imgur.com/AlCduqK.png)
This cards name is treated as "Ancient Gear" while it is face-up on your side of the field. If this card is Special Summoned: You can discard 1 Machine monster; Add 1 Level 3 or lower "Ancient Gear" monster from your deck to your hand, and if you do you can Special Summon 1 "Ancient Gear" monster from your hand. You can target 1 "Ancient Gear" monster in your GY; Add it to your hand. You can only use 1 effect of "Ancient Gear Pursuer" per turn, and only once that turn.
(https://i.imgur.com/SAZ3JOc.png)
You can banish 1 Level 5 or higher "Ancient Gear" monster from your GY to Special Summon this card from your hand. If a "Ancient Gear" monster is Fusion Summoned: Draw 1 card. You can destroy 1 Spell/Trap you control to increase the ATK of all "Ancient Gear" monsters you control by 500 until the End Phase. You can only use each effect of "Ancient Gear Lich" once per turn.