Friendship
Friendship is a hidden value from 0 to 255 that rises with care and battling and powers certain evolutions and moves
Gold and Silver introduced friendship. Species such as Golbat, Chansey and Eevee evolve on level-up at 220 friendship or more. Return's power equals friendship divided by 2.5, up to 102, and Frustration works in reverse.
Main-series games; introduced in Generation II, Gold and Silver.
2 later changes
- X and Y added a separate affection value raised through Pokémon-Amie, with battle effects.
- Sword and Shield folded affection effects into friendship and lowered the evolution threshold to 160.