Each weapon types have unique base stats. The mod changes ONLY base stats. so if your legendary 2h axe has extra 10% critical chance then it will be 10% + 20% = 30%
Sword_1h
damages_100% //default_1h
critical damage_150% //default_1h
weapon range_125 //default_1h
dodge chance_5%
damage range_medium
attack range_125cm
Sword_2h
damages_100% //default_2h
critical damage_150% //default_2h
weapon range_155 //default_2h
cleave percentage_30%
cleave angle_90 degrees
dodge chance_5%
damage range_medium
attack range_155cm
Axe_1h
damages_90%
critical damage_170%
critical chance_20%
weapon range_120
damage range_low
attack range_120cm
Axe_2h
damages_90%
critical damage_170%
critical chance_20%
weapon range_150
damage range_low
attack range_150cm
Mace_1h
damages_110%
critical damage_110%
weapon range_115
damage range_high
attack range_115cm
Mace_2h
damages_110%
critical damage_110%
weapon range_145
damage range_high
attack range_145cm
Dagger
damages_90% //-10% from vanilla
critical damage_150%
critical chance_30%
weapon range_80
damage range_low
attack range_80cm
Spear
damages_100% //vanilla *lower than Swords_2h
critical damage_150%
weapon range_250
cleave percentage_100%
cleave angle_30 degrees
accuracy_+5
damage range_low
attack range_250cm
Bow
damages_90%
critical damage_150%
weapon range_1300
dodge chance_5%
damage range_medium
attack range_1300cm
Crossbow
damages_100%
critical damage_150%
weapon range_1300
accuracy_+5
damage range_low
attack range_1300cm
Wand
nochange
Staff
nochange
Sword_1h
damages_100% //default_1h
critical damage_150% //default_1h
weapon range_125 //default_1h
dodge chance_5%
damage range_medium
attack range_125cm
Sword_2h
damages_100% //default_2h
critical damage_150% //default_2h
weapon range_155 //default_2h
cleave percentage_30%
cleave angle_90 degrees
dodge chance_5%
damage range_medium
attack range_155cm
Axe_1h
damages_90%
critical damage_170%
critical chance_20%
weapon range_120
damage range_low
attack range_120cm
Axe_2h
damages_90%
critical damage_170%
critical chance_20%
weapon range_150
damage range_low
attack range_150cm
Mace_1h
damages_110%
critical damage_110%
weapon range_115
damage range_high
attack range_115cm
Mace_2h
damages_110%
critical damage_110%
weapon range_145
damage range_high
attack range_145cm
Dagger
damages_90% //-10% from vanilla
critical damage_150%
critical chance_30%
weapon range_80
damage range_low
attack range_80cm
Spear
damages_100% //vanilla *lower than Swords_2h
critical damage_150%
weapon range_250
cleave percentage_100%
cleave angle_30 degrees
accuracy_+5
damage range_low
attack range_250cm
Bow
damages_90%
critical damage_150%
weapon range_1300
dodge chance_5%
damage range_medium
attack range_1300cm
Crossbow
damages_100%
critical damage_150%
weapon range_1300
accuracy_+5
damage range_low
attack range_1300cm
Wand
nochange
Staff
nochange