Evolution items and held items
An evolution item can change your team. Check whether to use it from your bag or let your Pokemon hold it for a level-up.
Use it or hold it?
Follow the instruction on your Pokemon’s page. “Use” means an item evolution. “Level up while holding” means it must hold the item when it gains a level. A held-item method does not add a trade requirement.
Check your location
Poliwhirl holding King’s Rock follows its Blazing Path evolution there; its Politoed method applies elsewhere. Magneton’s location evolution takes priority in Mt. Thunder and Peak of Kings; its Metal Coat method applies elsewhere.
Poliwhirl’s evolutions →Magneton’s evolutions →Evolution didn’t happen?
Everstone and Eviolite prevent level-up evolution. Check the held item and the full condition on the Pokemon’s page.
Item sources and access to special locations are still being explored.
Item evolution reference
Find your Pokemon below, then open its page for the full evolution family and any exceptions.