To add some more utility to the Metal Coat (it can only be used on Syther and Onix), it could also be sed to evolve the Pokemon that evolve via Magnetic Lure
How to get & use Metal Coat in Pokemon Go - Dexerto
Pokémon Go Lures, from Golden Lure to Rainy Lure, Glacial Lure
Pokémon Go Metal Coat - evolve Scyther into Scizor, Onix into
Pokémon Go Metal Coat - evolve Scyther into Scizor, Onix into Steelix, and how to get the Metal Coat
How to get Metal Coat in Pokémon GO
Pokemon Scarlet and Violet Metal Coat Location: How to evolve
How to get Magnetic Lure Modules in Pokemon Go: Evolution guide
Pokemon GO Buddy evolution guide: All Pokemon that need to
Pokémon Go Lures, from Golden Lure to Rainy Lure, Glacial Lure, Mossy Lure and Magnetic Lure Modules explained
Pokemon GO: Lure Module Evolution List - All Lure Evolutions
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