I finally have time to do the last map that I thought It would be difficult because my low magic damage but I cleared it in the first try. I even went with a LOL composition with Ristis Lv10 and max aff. (That surprising she dropped little more than 1/3 HP from the red oni) and AW Regina Lv1 (couldn't reach the oni but she helped in clearing the thrash so the mages could focus more on them).
Talking about Regina she really start to shine when she is AW, I was using her pre-AW and was kind of meh but after I AW her burst is good a little RNG but not bad I took her to the 72stam story orc missions and she did her job very well.
What they really need to change is her skill because that 150 range can't reach the next melee spot (If I remember the same problem was with ninjas?) and most of the time if you use her skill only for 2-3 enemy is wasted because she kills them in half the skill, can't support your tank in front and have a long CT so maybe is not ready for the next wave. Either they change the reduced range to 40% or they improve the cycle time and while we are there

they can make that her AWS interchange each cycle instead of one time use.