You are kidding right?
1.If I hit a barb that has a wall I lose m would have lost 1 lc,that means a total of 76 lcs lost.This is not the case because I only lost about 35,but considering this and the fact that barbs have walls,30 lc is not a lot.
And of course I lose more because I attack more than you.You probably send lcs in packs of 5(that if you actually have lcs) and yif you hit a spike you gain more oda.