Caster LB's make sense as is. The mages blow things up indiscriminately.

Melee LB's make sense as is. They wreck their opponent 1v1 (Yugiri using it in conjunction with Mirror copies aside >.>)

Ranged LB's is a little off... They shoot in a line and kind of hurt some people maybe?

Like, where does Ranged LB fit in? It's not good ST because it's an AoE skill so its weaker... It's not good AoE because it doesn't have the coverage to reliably hit the mass AoE targets that usually warrant a LB usage.

So, if anything Ranged LB is the one that should change.

Into what?

Possibly something supporty. Given that seems to be a theme with BRD/DNC and the role actions.

What kind of support though?

Defenses and resources are already taken care of with Tank and Healer LB's respectively... So that's out of the question.

Damage boost? It'd be tricky to balance because either it'd be weaker than Melee/Caster and thus never be used still, or it'll be stronger and be the desired one... I suppose maybe there's some room for having it be more potent than Melee/Caster ones if you can maintain uptime throughout the duration, with Melee/Caster taking over for the times where you need faster burst.

So yeah... Maybe alter rDPS LB's into providing something like a vulnerability debuff or something that lasts a decent while at a low value. Like IDK 5% for 20s or something? Making it ideal for periods of good uptime on a boss. While mDPS/Caster LB's maintain usefulness for quick burst damage such as before a phase transition, or to finish targets off.