Increases the power of Steel-typemoves used by the holder by 20%.
Outside battles
Causes Onix to evolve into Steelix when traded while holding it; causes Scyther to evolve into Scizor when traded while holding it. This consumes the Metal Coat. In Pokémon Legends: Arceus, due to the absence of held items, the Metal Coat simply needs to be used on Onix or Scyther to trigger the evolution, though the item is still consumed.
In Pokémon Conquest, Onix or Scyther evolves into Steelix or Scizor, respectively, if it knocks out a Warrior's Pokémon in a manner that allows recruitment while its own Warrior is equipped with a Metal Coat. The Metal Coat also increases the Attack of Steel-type Pokémon by one stage.
Metal Coat can be purchased from the traveling merchant for 5000 gold, and sold for 2500-3250 gold.
While normally rare, from March 21, 2017, onward, the player is guaranteed to find an Evolution item when obtaining the bonus for spinning a Photo Disc for the seventh day in a row.
Additionally, the player receives a Metal Coat from these Special Research tasks: