Ok so I read this tread about two weeks ago and decided t do some playing around with Maria. What I have noticed : The first thing i did was take my guardian staff from shayd and gave it to maria, constant misses would maybe get two heroes once in a while. I needed Shayd in formation so returned Staff and started new gear for Maria. A basic staff and she seems to be hitting a lot now but only healing around 7K. Upgraded to Champion staff and hit started to decline. Now With guardian staff again back to hitting 1-2 heros and alot of misses. Will test more when I have her sanctified.
I have also tested Runes trance Lv8 vs intensness lv. 7 makes no difference in hit rate.