What It Does

This single-use consumable applies Eternal Engine (Max Stamina +75%, effective on rideable Pals — the top of the stamina family, above Infinite Stamina and Fit as a Fiddle ) at the Pal Surgery Table . The surgery itself is free; the implant is consumed. Unlike the permanent "Implant:" key items, disposables stack in your inventory and each one covers exactly one surgery.

Stamina is what mounts spend on sprinting, gliding, and swimming, so this is the single best quality-of-life passive a travel mount can carry. It stacks with the lower tiers (+150% with all three) and pairs naturally with the Swift speed stack.

Where to Get It

Disposable implants come from one place: the Ancient Relic Recycler . Every recycled Ancient Relic — any grade, including cheap Decayed ones — rolls exactly one implant from a 16-implant pool, so this one lands at 6.25% per recycle. Because it's one-and-done, spend it on your main mount, not a breeding candidate. See the Ancient Relics guide for the reward tables and the implants guide for how surgery works.