Cleric/Ranger's rock !
Dualwield and kick butt.
Flail of Ages, Mace of Disruption, Crom Faeyr, Fulcrum (Item Upgrade Mod), ...
Ironskins, Insect Plague, Nature's Beauty, Fire Storm, Creeping Doom, ...
I once played solo and no summons on Insane. Here I am in TOB in the first pool battle - Ascension. Still waiting ...