Demonology damage is ridiculous

[Felstone]

Ok, I have been stumble upon that for quite a while and i don't know that a bug or a server "easter egg". Demonology warlock deals a RIDICULOUS damage. No sarcasm. Just realy ridiculous damage.

My pet(Felguard) doesn't really deal any damage, 4-10k per hit, like corruption in MOP, but now this is NOT MOP anymore, everyone have 2-3M HP. Its like a bug what can only stun sometimes. I can't do anything to melee classes and some ranged ones, the time they see me they instantly switches to me, cuz im a plushy thing what humming like a bug. Thal'kiel consumption(45secs cd) can do decent damage only when i have 7 or more pets, i mean 160-300k. For comparison warrior deals same damage just for 1-2 hits. And a felguard what summoned with grimoire deals in sum something like 200-300k(1.5mins cd). Hand of Gul'dan deals something around 20-25k for 4 shards. And the most nonsence cast is Demonwrath, its draining whole mana pool in seconds if i have lots of pets and deals non of damage. I don't have top gear, but mages in green trash dealing crazy damage with gear they have(I know that mages pretty op in legion, but still...)

Back to the question. GM's probably will say that blizzard nerfed demo locks, but back in time on live 7.1.5 demonology was dealing a good damage.
Some videos with proof:
https://www.youtube.com/watch?v=G2CTjjMf6l0
https://www.youtube.com/watch?v=cwv54N8jdvw
https://www.youtube.com/watch?v=wfOsgFyYK2g

[norbert.pls]

You should make some in-depth research of which spells are do not act correctly (and are not already reported at the class bugs section) and report them with proof for each.

Electric Warlock Acid Witch
Legion Guide - Destruction Warlock in PVE
Legion Guide - Restoration Shaman in PVE

[LethalFactorLK]

If you got solid blizz proof create reports for individual spells https://forum.wow-freakz.com/PENDING-Class-spells-talents-f5550.html

We simply wont change spell damages since a player says so, if you got proof its not working properly make a proper bug report in the above topic