For fixing (after asking for some help) a pretty stupid error in my Character.
I had an AoI on my tank, and an Enchanter with PL trained behind it.
The thing was, and I knew what the AoI did perfectly, that my Enchanter was receiving _all_ the physical damage as well as direct MM damage instead of using the PL.
Now I see my Enchanter having much more HP left after a fight and hopefully I can extend this even further :)
Thanks bartjan!