Lol reaver is probably the highest dps warrior class, but SS is even more OP except she is a rogue.
About equally as damaging, can't die (usually, unless you afk for too long...) and has charging bull XD Of course, promotiom scrubs would have no interest in her because you lot descriminate against rogues.
SS is op for promotion bums, she is like a better dps Lego with charging bull, war cry (upgraded) and guard on hit meaning they can stay alive and hold aggro even with measly constitution in nightmare. Shield bros definitely give her fits unless you've learned to PI and Flashing Steel. Upgraded throwing blades+ hidden blades+flow of battle can literally down 3/4 of health of a nm dragon. Two ss will definitely kill it before she flys away. Yes, poor dragon.
The reaver is extremely op the higher your constitution gets as it effectively negates the need for rampage and hok gear. She is still survivable with low stats though just have to be a little more conservative instead of Yolo and have a barrier bot close but it isn't necessary. No idea why they would give her a dragon rage ring (30% extra dmg on top of 200 Upgraded) unless they felt bad about rampage nerf and bugging on rare occasions, as if the ability was mandatory in the first place. She was always one the highest burst +overall dps classes only assassin can hit harder but that's only on single targets.
The end game class balance is terrible since support has ended. One class generates support xp for supporting himself literally (Cillian), the other two are far too sturdy for the amount damage they do (Melvis & leave it to Reaver). And these are the most played classes in nightmare and hb. I'm wondering why they haven't removed the necromancer and keeper in the last patch since nobody plays them in nm pugs.