I pretty much stopped tracking how much damage Mind Blast does relative to the amount of health a target has beginning in Wrath/Cata and completely ignoring it after that.
But in classic, I can distinctly recall my Mind Blasts hitting for around 1000 and critical strikes hitting around 1500. This is with my warlord gear.
My health was just a bit north of 5200 and tanks when really geared up can hit close to 10k.
So I think it’s fair to say that Mind Blast was dealing 1/5 of the average players health.
Obviously we had a lot less list of spells doing damage and things have changed a lot over time.
So not sure how much players health percentage Mind Blast should be able to do but I think a good starting point would be 10%?
But that would be a really buffed up version of Mind Blast that only happens with your cooldowns and other synergies would align.
So by default, maybe around 5% of a targets health?
Not sure what is really a good amount to make it feel impactful but remaining within reason in terms of balance.
But this also leads into the question of which part of our damage should be the most pronounced? Periodic or Non-Periodic?
This is another example why I wish we had talents that can lean and shift more power over to one or the other side to cater to whatever situation you want be it short bursty fights or long drawn out fights?
This is why I believe having the central pivot/fulcrum to establish such a seesaw of power shifting should relay on your cooldown choice where the choice node would dictate your preferred damage profile route and why Voidform is just not it since it’s trying to do both Periodic damage with Devouring Plague and Non-Periodic damage with Void Eruption and Void Bolt.
If we free Voidform from this trying to play both sides aspect, we can actually give it a clear purpose that can then pave the road to cater to those that miss our dots doing actual meaningful damage and those that miss our casted spells doing actual meaningful damage.
Increasing one keeps the other low to preserve balance.
Too bad not enough people see these internal conflicts that Voidform cooldown presents lol. Because if Voidform increased only 1 side of its damage profile, then it calls into question the existence of the other side of its damage and since it’s doing both currently, we will never be able to detach our damage and make meaningful because we simply have too many sources of it and as such our damage is forced to be be spread out and thinned across all our damage sources.
But if we enhance one side or the other with enough talent options, then we can have the autonomy to make a portion of our damage profile be scary while the other is just passive and tickles or we can reverse that and make the other portion of our damage scary etc.
Doing this will make priests unpredictable in PvP to an extent as it will take you a moment to understand what is more scary facing every Shadow Priest as they could be different each and every time.