Sorcs are not overpowered — Khaevil is
I have never seen anyone utilize their class the way Khaevil can. He min/maxes in every way, using spreadsheets and dps logs to figure out the best way to WTFpwn the enemy.
I hardly believed my eyes when I saw he got more than 100k damage a minute in a scenario. See for yourself:

Yes, 5:09 minutes, 45 deathblows and 544,121 damage. Of course he’s being backed up by two healers when we go into scenarios, but almost any player who runs premades is bound to have a healer or two in their groups.