Summary: They fall flat.
This is just my subjective opinion but it feels like most offensive priest abilities lack the visual oomph that makes them feel like they’re powerful and dealing the damage they actually show. Casting Penance just feels like I’m firing shiny streamers at them, and with the “Purge the Wicked” talent removed, SW:Pain just looks like a purple poot.
In addition, everything is either holy gold or shadowy purple. Priests could easily be the most Glyph-heavy class in the game if they bothered to remember that Inscription exists. We have priests of every stripe and theme in the lore, with NPCs using all manner of spell visuals to accompany their class flavor, but players get none of it.
- Dwarves/Earthen (and maybe gnomes/mechagnomes?): Titanic runic visuals and pale blue/yellow spells instead of just pure holiness (Or like the visual styles of Titanic magic we see in DF and TWW).
- Nelves/NB: Silvery moonlight visuals and moon iconography. Shadow spells could be more starry/astral-themed.
- Belves/Tauren/Dark Irons/etc.: Sun visuals/Holy Fire.
- Trolls/Zandalari: Loa visuals. Maybe spells with a mingling of holy energy and green nature energy, or something similar.
- Humans/Kul Tirans: Watery visuals for Tidesages.
Just throwing out ideas. I could see them not doing that because it would result in demand for other classes to get similar visual customization but… I can’t stand playing priest just because of their outdated-looking spells.
At the very least, let me just lock into one visual style. SW:Pain or Renew should be holy when I’m holy and shadowy when I’m Shadow, y’know?