Confusing Frost: Will freeze a target unit so much that it will be confused. The unit will move to a random location without control and take XX damage over time. Effect lasts for XX seconds.
That will be anoying for the caster And for the other players
I can't believe no one did like a Frostbolt
Icicle Strike - Summons an Icicle that will go straight forward, damaging everything in its way. (Shockwave). It will then leave a mark where the spell was for 10 seconds, slowing movement of all hostile units enetering.
Brain Freeze - Takes 5% HP from the caster, and then silences the enemy unit for XXX seconds.
Water Walk - Creates ice beneath the caster, allowing the hero to walk on water
All i got so far :3