Casters don't need buffs. Martials and consumables need nerfs. Too many extra attacks, venoms are broken, and so are speed potions. Martials also got like three to four times the item pool the other classes did, including like 5x the amount of legendary weapons.

Druids and rangers are the worst class, with bard after. Those could use a few touch ups, but in general bosses are dying too quickly because speed potions and venoms and multiclass extra attack perks are giving too much power creep to martials and some casters.