Change Firebrand mantras to be strictly PBAoE

[cat.8975]

These skills have had target priority issues for years now, I'd rather just have simple spheres (300 radius?) than deal with this mess of cone+sphere where allies in your party/subgroup are excluded if they're in the sphere and there are already 5 targets within the cone.

If it's not feasible to create a custom shape with proper priority, whether for performance reasons or whatever other restrictions, a single sphere where the effects are consistent and predictable would be preferable.

Pragmatism > Idealism

Edited September 1, 2021 by cat.8975