Diablo – In Diablo 3 what’s the best way to test different weapon/spell combinations

This is not reproducible for me. It must be a graphical error, as there is no mechanic that I know of that would be affected by the hand in which you hold the weapon.

Edit: The order of your weapons does seem to matter for some skills, but the effect remains unreproducible for me.

There's option in the gameplay to display floating damage numbers on monsters and/or players. (by default you only see crits against monsters). However, these numbers are rounded to the nearest whole, while damage is certainly float-number based (if you watch health bar with level 1 enemies and a new char you can see this).

You could probably get a screencap system to create a damage log based on this, but that's far beyond my programming skill to code. Theoretically you could also intercept it from the outgoing server traffic, if you could figure it out. (assuming it's not encrypted, it should be pretty easy to do, but also way beyond my ability)

Also you do get a readout of what killed you in the chat log, I get killed by arcane sentries a lot (those purple laserbeams of doom)