my dark raid mono team is Hel, Rigard (I use mainly costumed one), Seshat, Sabina and Tiburtus. All heroes are maxed and the 4* ones have maximum of emblems as well. This team is so strong that I sometimes use it successfully even against dark tanks (when flanks are holy etc.)
Now I have enough materials for to perform final ascension of a 5* dark hero, and my Victor, Quintus and Domitia are ready for it. Which one would you ascend to best fit my team? I intend to replace a 4* one with this hero, probably either Sabina or Rigard, at least when there will be no need for two healers.