Actually Sora, i have to say that Berna, when awakened, is a beast. Much like Karma/Sophie, she can save the day 90% of time. :P
She has so many "chance to kill" (see pic below), that she literally one shots 4+- units in row with skill on, and i dont mean goblins, i mean heavies with 1000 def or whatnot, liches, this dancer on X map, horse riders. Just pew pew pew and all gone =)
Honestly, i kept her at lv35 for a looooong time, but then i said, fuck it, she's black, why not, got her to lv cc60, still didnt use her a lot (but i did use her). Then i said fuck it again and awakened her. Ever since then im just sitting like O.O watching how she annihilates enemies. Like cutting through butter.
Uo8OEgHyx.png
Also forgot to say, if you take in account her attack speed (which should be 1.3 i think +-) her attack, prince, and skill, she has huge attack, (if i did my math okay, 1122 damage per sec)