The Kyrian Covenant ability for Priest is Boon of the Ascended:
Draw upon the power of the Ascended for 10 sec, granting you access to Ascended Nova, replacing [Mind Flay, Smite] with Ascended Blast, and increasing movement speed by 50%. Upon expiration, releases an Ascended Eruption: Explode for Arcane damage to all enemies and healing to all allies within 15 yds, increased by 3% for each stack of Boon of the Ascended.
This ability has a lot going on, but I’ll start with my obvious pain point as a Shadow Priest…this has absolutely no synergy with Voidform or Shadow, and if anything is detrimental to the specs fundamental idea. If the goal with Shadow Priest is to maintain Voidform, and generate stacks for ramping damage, why do I have an ability that requires me to LOSE my insanity “filler” in addition to not gaining any insanity whatsoever for 10s? This ability seems to be designed around Discipline and Holy Priest, but doesn’t feel like the design considered Shadow whatsoever.
From a different perspective, if I was a healing main and chose to take this Covenant ability, I would have no idea how to fit this in as a Shadow Priest, it just makes no sense. Because Covenants are locked by character and not by spec, this just feels like a trap ability for anyone that would want to use this for Discipline/Holy, but also wanted to play Shadow.