Quote Originally Posted by Lucid View Post
It will increase your lightning skill damage ofc. I just wonder if it is additional or multiplicatice?!? (Is it: skilldamage x 500% ligtningmastery x 20% griffons lightdamage increase Or is it: skilldamage x 520% lighningdamage increase from various sources?!)
As the game is pretty bad for calculating the damage, any +% to damage is added to the initial damage skill you have. it is additive but take in consideration the amount of projectile you have and that scales a lot better : L/CL vs lightning fury(java)

For lightningSorc and fireSorc - %resistance is better then + %damage
For FrostSorc +%damage is better then - %resistance(when capped at -135 % including mastery)