Need help on a Flicker Strike build

I'm building a scion revolving around frenzy charges, and I figured flicker strike was probably the best option for a main attack. Right now I'm level 50, and I've got it set up so that it's linked with multistrike, mana leech, and melee splash. That, along with blood rage, makes it so that I can do a ridiculous amount of attacks until the field is mostly clear of enemies... or at least that's the theory. It's working great when I'm alone or with another person, but it's basically not working that way at all when I'm with more people than that. I feel kinda useless in a 6-man party, so I come to you today asking for help with my build.

Flicker Strike and Blood Rage are my main abilities, but I have Frenzy as well, which is linked with faster attacks, so I can build up frenzy charges again when I run out. I'm also using clarity, though I think that's redundant with mana leech at this point, so I might end up replacing one of them. I should also mention that I'm using 2-handed axes, since those seem to rely less on crit, stun, or accuracy than other weapons, and I think they're a nice compliment to resolute technique.

Here's my build:


Is there something I'm doing wrong with this build? Is there any way to salvage it and still use flicker strike or should I switch to a different ability?