An ingame mechanic that helps make the game “unique” on every run so everyone has a different experience, but is useless in competitive. I feel like they should make IVs story-exclusive, while online IVs don’t actually do anything at all. That way the game still stays unique when playing through it’s story, but isn’t a pain in the ass for competitive and allows for people to only focus on EVs, natures (which should be easily changeable) and movepools.