>>46858964Bug is resisted by common types like steel, fire, poison, fairy, flying and ghost
Grass is also resisted by 4 of those, but some resistant types like bug or grass itself are worse and more uncommon that anything that resists bug.
Bug is super effective against grass, psychic and dark, but doesnt resist psychic and dark.
Grass is super effective against rock water and ground. Not only are water and ground much more common than grass/psychic/dark, but they are also resisted by grass.
Many grass types benefit from weather, they have a dedicated terrain for the type, they have special properties with powder moves and leech seed, and 95% of them have recovery with synthesis or strength sap.
There is no battle effect, gimmick or terrain that directly helps the bug type in general. They are also weak to stealth rock and they have the lowest average BST
