>>38112311Water immunity is too much of a shortcut idea to be taken seriously.
I think of Ice to be like rock, it's not as strong as you think it is though, and being cold actually makes it easier to snap rather than disperse damage like the body of a blubbery whale can.
So what do we take from this?
ice should share weaknesses that rock has, namely:
Fighting, Steel, Ground.
As a specific type, it should be weak to:
Fire, and potentially depending on the way you think about it - water. However this can also work against itself which I will explain in the next part.
Resistances:
Ice should absolutely resist some of the same things that rock does. So the shared resistances should be:
Flying and poison, technically.
However I really think given the circumstances Ice should resist Grass, bug and potentially water as well just because Ice is not only representative of frozen water, but things that are incredibly cold.
SO:
New ice resistances:
Flying, Grass, Bug, Water, Ice.
Why not resist ground or fighting?
Because there is an unseen elemental matchup. Cold things are physically more dense, they have fragile bonds and can snap. The fighting type actually uses the ideology of hitting critical points, which anything cold - especially actual ice - will shatter or snap. That's the same reason why steel types are weak to it. But why Ground? Ground is more about mass than it is about density, this is the overlooked interaction I'm talking about.
Ground can wreck Ice types because they are a solid STRUCTURE. Things like water, sand, dirt etc are things that absorb and disperse energy very easily.
Also, in terms of the new resistances listed above: The reason why flying, grass and bug make sense as a resistance is because those things wouldn't choose to go near something like that. They would weaken severely while approaching.
Unfortunately, Ice still has to retain its weaknesses to fire, fighting and ground which are all huge coverage types used by many mon.