So far SUPER unimpressed with Gloaming Cut. The animation speed is stupid slow for the suck damage it outputs and it's taking up space that I could be using for another useful At-Will.
I agree with OP. The graphical effect is distracting to the point where I'm thinking about dropping it for another Daily. It's not "Overpowered" and it's a lot of fun to use and ups your DPS for a short time, but if the idea that it's distracting is part of the whole idea, I'd rather take a small nerf and be able to see…