Quote Originally Posted by sanyammout_7754188 View Post
I add Synergia to Skill Attack (Bane) and Bane absorb Synergia and it did not effect it at all. So it is lost. I still don't know what does it do
Synergia does nothing but add 1200 exp to any other rune. It cannot be leveled up and will be absorbed by any other rune. Your Bane should have gotten 1200 exp added to it.