I think i’m ready for its 400th rework.
It’d be more fun if the Archon and Voidweaver abilities had lower CDs and at least one of them was baseline, with a “pet-centric” Hero Talent tree being added, which would probably improve Holy as well if it had the corresponding tree modifying its pet(s)/“lightspawn.” This would also alleviate some of the clunk/pointlessness of the left side of the Shadow-specific tree and it could be tailored to fix the problem of “hurr durr, Shadow Word: Madness spam.”
You could even go the route of some sort of “beat saber type minigame,” where recasting Halo at its minimum, and/or maximum does something beneficial.
If they won’t make SP especially tanky, they need to make it more mobile.
Angelic Feathers should be a shared talent node with a talent that improves (self-casted only) Levitate to not break on damage and perma buff speed by 15%.
Translucent image is baked into Phantasm, and in its place, Priests should get Door of Shadows, but without the cast time.
On the spec tree…
The useless Mental Fortitude at the top of the tree should be just an upgrade to PW:S into Void Shield.
This one may be a bit of a hot take, but I wish the Apex 4 only activated the Idols you actually have talented into, so we could control which ones would go.