You're the first person I have seen who shared difficulty with killing monsters at your level (15) and monsters below your level so I would love to investigate why this is the case.
versipal wrote:Likely you're partially right, however, I do strive to keep my gear as up to date as I can with rewards, and buying the big gear bags from my class vendor, however, the changes that I noticed were a "before" and "after" effect.
I was originally going to ask if you have obtained reputation gear for the zone you are fighting in as reputation gear makes a big difference. I did notice your comment about using the gear sets that come from archetype vendors. Not many people use those gear sets to level as completing all quests to acquire quest gear will provide you with better gear that will help make sure your build is balanced.
In regards to having a different experience with killing mobs before and after this patch, I can't vouch for that as I can't play your character to know the difference. But yes, please try switching out the gear sets you have to quest gear and that will hopefully give you the boost you need to level just fine.