Enspell Mods, Calculations, Effects - How to update them

[lefneer311]

Last week while testing I noticed that Composure wasn't working as expected and opened issue #4518

While attempting to come up with a working module to adjust Composure's effect to mirror live servers, I noticed that several related components also appear to be either bugged, or not implemented in a way that reflects the live servers.

I wonder, is there an appetite for re-writing the Enspell effects? Particularly the tier 1 elemental formula, though I believe the tier 2 also needs adjustment to take enspell_dmg (%) mods into account. The way I understand it, enspell tier 1 calculations are performed at the time of casting, whereas tier 2 calculations are performed at the start of each combat round.

To the devs here - what would be the appropriate path forward? I'd like to help if I'm able.