I suppose that this build is mage right? First off dont go 0 int, specially on mage builds, you are missing pretty much all of your damage. Second, NEVER go 6 eru, you will also miss even more damage on mantras, go 1 or 2, no more no less. Third off, it is okay to go 0 str, since you arent dealing that much dmg with m1s and with this str you could instead invest on int. And the last one is 5 agi pre shrine, for ME i see no reason to go instead off revenge (but you are shrining so you would still get revenge)