Yeah, as Velcas already stated, you just proved my point. You used none of the standard combat skills from aerothurg. I would not call it 'playing an aerothurg' if you only use utility skills. My aerothurg-scoundrel in the first game used skill like the lightning dash or shocking touch regularly, he loved to enlighten the ground after we casted rain and made everywhere water.
Utility skills are the reason, why my rogue had points in most of the skill trees. Because of the low requirements you can give those utility skills to pretty much every char anyway. Damage does not matter for utility.
