How awesome would it be if gyms had bioms that effect types. For example a gym has a ice biome so ice types would deal more damage but grass, dragon and flying will deal less damage. ( no extreem multipliers )
This would have a visual effect during the gym battles and would effect the types people leave in gyms.
Yea, this was mentioned early in the game's life but it's worth bringing up again.
Gym's giving type advantages (similar to STAB) would be a great change to influence gym variety. It would also be consistent with how most gym leaders in the games have a mono-typed gym. Giving a damage boost and CP-adjustment based on the boost would make having a "top-of-its-type" pokemon worthwhile regardless of if the type is underpowered.
Hmm, maybe instead they could give us a "floating" 3rd move that would include moves like Sandstorm or Hail (maybe also others like Recover, who knows), thus gym defenders and attackers could activate these conditions on their own, and there'd be little effort to fit pokemon to gyms benefitting them.
If they wanted they could also intersperse Type-themed gyms among the Team-themed gyms, e.g., Times Square could always be a Psychic gym.
10 % extra damage and 10 % less damage taken would be a nice range. Niantic should make water biomes less common in comparison to the other types. They should make the types that are underperforming like poison and fighting more common.
But what if there is a water gym?
It doesn't make a difference because the gyms right now are full of vaporeons and gyarados.
