SilchasRuin

You're over emphasizing DR by not calculating sneak attack and might % damage into the equation. Also the 2 hander's bonus is less relevant when considred alongside the other buffs. Also, you have attack speed on dual wielding the same as on a two hander. In fact, you're treating it as if dual wielding is the same as single wielding with a 20% faster attack rate. It's not.

It's most likely a bugged status effect. You can use the priest spell Suppress Afflictions to get rid of it. The icon for the affliction will likely remain but the effect should no longer apply.

Aloth just has really poor stats for damage dealing. Although compared to some of the other characters Aloth is practically min-maxed (looking at you Sagani/Grieving Mother).

Ya, it seems like his spells cap out at 50ish damage (Aloth at level 9), but in AoE, so he's basically a AoE control, damage turret. A couple of his best spells require plenty of positioning though, and he doesn't get as many foe only spells as the priest or druid. Since the cipher is kind of bugged I haven't played with Mother very much (some item that keeps her from gaining focus in combat). The higher level wizard spells are pretty good CC, like Stargazer said Call to Slumber is a battle ender, 14+ seconds prone? And that's on Aloth with his poor stats. If you're not using Fan of Flames as a blaster wizard, you're doing it wrong. Fan of Flames, a level 1 spell, deals a massive amount of damage in a sizable aoe. The only weakness of it is it's finicky with positioning but otherwise it destroys. Fireball is solid damage with easy reqs, though not as strong as Fan. In fact I'd say Wizard (fan of flames) might even be a tad overpowered if used properly. My Wizard currently is my #1 damage dealt character, and second highest single target damage. This is in a party with dps Barb Rogue and Cipher on PotD with a full custom party.