Luck to-hit nerf:

Luck adds +1dLuck to-hit, not +Luck
Atma weapon nerf:

Atma weapon adds +1dLevel damage, not +Level
Two weapon combat nerf:

Your strength bonus does not add damage to your off-hand weapon
Skill changes:

Restricted riding makes it really hard to hit.

Skill adds more damage.

Bonus damage from skills while using Two Weapon Combat maxes out at +0 and gives -5 at unskilled.