STR + 2, Atk. Spd. + 25%, P. Atk. + 376 and P. Accuracy + 3 when a sword, blunt, or spear weapon is equipped. Increases the number of possible targets during a spear attack. 50% chance of triggering Lightning Force during a critical attack. Additionally, there is a chance the re-use time of skills will reset or the duration double depending on your STR
Superior Dual Weapon Mastery
STR + 2, P. Accuracy + 3 and P. Atk. + 376 when using a dual sword, dual blunt weapon, or fist weapon
i got with 1h sword more attack speed that others spear and 2h sword all weapon include duals got the same attack speed except the first mentioned, to be clear all have normal attack speed on description, something is missing here.
2h sword, dual sword, spear got 325 atk speed
Superior Dual Weapon Mastery stack as one.
Because Superior weapon mastery gives the atk. speed on 2handed/pole
so that's it gives the same a.speed, also 2handed + duals have the same p.atck,
Spear has less, why is that? i had this confusion too, but then i understood that both passives work on all the passives, the difference is the stats both gives.