I'm a bit confused with the way weapon damage is calculated.
Up to now, I hadn't invested in weapon expertise so I have 1 point in all type of weapon expertise.
I have a full Defender of Aleroth set, with a character heavily geared into intelligence.
When I single wield the mace of Aleroth, my damage is listed as 24-30 + (58-61).
When I dual wield with a fairly crappy secondary weapon, I have 7-9 + (36-45)
When I use mace + blood echelin shield, I get 24-29 + (100-103)
How is it the damage goes so insanely high with Sword and shield?
I play the game on PC, with the latest patch installed.