I don't know I mean if someone picks Grass/Ice then well... Counters would be quite easy to find :/
Counters for Grass- Ice, Poison, Fire, Bug, Flying, Grass, Steel and Dragon
Counters for Ice- Fighting, Steel, Fire, Rock, Fire, Water, Ice, and Steel
Grass SE against- Ground, Rock, Water
Ice SE against- Ground, Flying, Dragon, Grass
It makes it a little tough to work around, especially since most Pokemon are Dual Typed.