ToME: the Tales of Maj'Eyal

Hello.

I changed amulet and to my surprise this happened.
I use a +3 CUN amulet and get +2 damage.
When I swap to Daneth's Neckguard which gives +6 STR I get -2.
What is going on?

Hmmm.

After moving one step the (-2) disappears.
Still, +3CUN gives 2 more damage to both daggers than +6 STR which is peculiar as the daggers use STR and DEX they say.
Or is it LETHALITY that spookes me again?

Lethality changes the Str reliance to Dex reliance, so strength makes no differences to dagger damage on rogues.