Because ice types literally die at room temperature mayne. So they just happen to be a bit less common.
>>24628589Resists are good. Ice Type Pursuit... might be useless or broken. A lot of iceweak pokes can still plow through the majority of offensive ice types, so unless you go around giving it to other types a lot
which makes it less effective as a buff to the general icemon a lot of stuff like dragon would just go for the kill assuming Icesuit, no? But if they predict pursuit and get hit with icicle crash first... I guess that's something.
Ice should also resist electricity. No free electrons in ice for currents to flow with.