[Shujin]

I personally like the idea of a projectile attack that isn't aligned to one of the bear/ fox/ rabbit schools. I also feel tgat it should also perhaps have an interaction with ice pillars.

Usually ideas as how they should interact with something should be helpful. I persoanlly thought that projectiles itelf should kinda be stopped by dense objects on the field and not phase through them buuut...Since thats not a thing, I don´t see what interaction it should have.
Also the skill is meant to be simple, to justify it´s 1M, which in turn makes it good.

So we go with this then? Sounds good to me.
Description:
A basic skill every Verglas learns early in their training, to master the control of snow and Ice. They form a snowball projectile in their hand and throw it at a target within 6 range, preferably in their face, dealing ice magical damage to them and inflicting Frostbite level Rank*5 for 3 rounds.
Rank 1: 1M 10 FP 30%Ice Atk 10% Scaled WPN Atk
Rank 2: 1M 8 FP 40%Ice Atk 20% Scaled WPN Atk
Rank 3: 1M 6 FP 50%Ice Atk 30% Scaled WPN Atk