Yes, I agree that strange 3D effect can completely ruin the look of a weapon. It could be changed to a fog that descends from the weapon to simulate cold air as it happens for liquid nitrogen.
It could be a performance issue, I rarely saw that animation because of my slow PC.
I had the same impression, many weapons seem unfinished to me, I had the same impression, many weapons seem unfinished to me, especially I find it very strange when I think they don’t have a charged attack, not even for the first attack in the chain. I also analyzed Icebreaker’s moveset in particular and even if it seems to always be the same animation in a loop, in reality they are two different animations, one goes slightly towards the left and the other slightly towards the right, This moveset however is not compatible with the appearance of the weapon, it looks more like a mace or hammer moveset.