Do off-hand weapons even add damage?

For rogue, if I was to get my secondary off-hand weapon upgraded right now, would I see a damage difference in my abilities and power, or is the main-hand weapon all that matters for anything that isn’t auto-attack? I know my auto attack would go up a little, but would it add damage to my abilities?

Depends on the ability.

Mutilate attacks with both weapons for instance, but mostly white damage is the biggest boost.

According to my stat weights offhand dps is roughly 6.59 dps per ilvl. Obviously results may vary.

Well I’m not really speaking about auto-attacks or DPS. Just how hard abilities hit. I put on a level 1 dagger and there was no difference in damage so I guess this is figured out now. Replacing my off-hand weapon with a new one is the last piece i’ll do

Come join Enhancement shammys!

We love white damage if thats your thing! Heck even our best leggo is about more windfury white damage! MWHAHAHAHAHAHAAA

From a non-white attack perspective it’s just a stat stick IIRC, unless that attack takes into consideration attack power (which many don’t). Melee itself goes through the completely different route of attack power.