According to http://bbb.hidden-street.net/character/skill/ice-charge-sword , Ice Charge should increase W.Att by +110% at rank 30, this should give a significant damage boost against element neutral targets, and an even larger boost against element weak targets, but it gives no extra damage at all on element neutral targets, either on my character sheet or actual damage numbers in combat. When used against element weak targets I do see a damage boost, so I'm assuming the elemental portion of the skill works. This affects all three element charges, I'm not a Paladin yet so I don't know if it affects Holy Charge as well. Strangely, the charge skills give me a small Magic boost instead.