Hello again fellow frost enjoyers,
when i tried Ice Shards in the EA-Beta, i wished that this Core Spell allowed me to change its direction while i am using it. I think this would lead to sometimes more missed hits (or you could say “skill-cap”), but also more hits against moving targets, when aimed well
Maybe the devs have an idea to somehow make you feel less “locked in” when using it 
Ontop of not being able to keep aiming your shots. Ice Shards also does not Aim correctly and misses big targets that you aimed onto.