Buff: Bug types, I don't think a single one of them breaks 500BST except shuckle when theres like 12 dragons and almost all relevant water types chilling above 510
Nerf: Eviolite - rather than a defensive boost, would an offensive boost like light ball or something more help reduce chansey becoming trouble
Delete: Shadowtag - the thing is basically always banned, whats the point of it for real?