The level 70 Archmage skill 'Healing Aura' says:
" +50% defense for 30 sec upon using skill "
However, when casting the skill you do not gain +50% Defense (the skill specifically says 50 **percent**), you merely gain 50 DP. Either the intent was for the skill to give 50 DP and the description needs to be updated to remove the percent symbol (%), or the skill was actually intended to boost defense by 50 **percent** in which case it does not, it only gives 50 defense points. Either way, the skill needs to be corrected.