Extra damage to undead (probably only skeletal, not wiedergangers) would help. I’d consider it at about +50% extra damage to undead.
Dagger puncture is absolute bane of my existence, I’d support any nerfs to it just as knee-jerk reaction:). You know when you go: “Yep, 2 orc warriors around me. Guess I’ll shieldwall and be fine for a while” vs “AAA!! It’s two ambushers in melee, am I sure I can survive 4 puncture attempts? Shieldwall or not…”, I’d say daggers are comparatively too dangerous.