Camp Goblins: walk past them (or save them for later)
Gut: private chambers, easy kill.
Minthara: easy kill.
Razlin: take the high ground and/ or get Halsin to join your party.
To make it easier you can use haste potions.
Against bunched up enemies...AOE is the way to go (moonbeam, cloud of daggers, grenades).
You can start from stealth and you might surprise your enemies.
Of course grab the best armor and wpns you can. You can add fire or poison on your weapons.
