Rearguard Sergeant is a Force affinity epic from the Dwarves faction. Rearguard is a strong all-rounder able to support your team through any Dungeon.
She starts to find her true calling in Clan Boss as a team protector and back up decrease attack champion and then excel as the faction MVP in Faction Wars. Rearguard is one of the first on the team sheet to beat Faction War stage 21! Her Ally Protect ability and heals will give you a chance to tank through the big hits and keep your team alive.
I run her with good speed, accuracy, and high HP and Def, specifically for Faction Wars immortal set is amazing to keep her alive through the additional passive heals.
She will bring just as much support for Doom Tower as well.
A great Dwarf well worth leveling!