No healing possible for the zombie armie.
Deceased in 4.244, Belcorra was born in Absalom and was very young when she was driven away from her home because her parents where accused of practicing dark ritualistic magic. Later in life she was responsible for the making of the lighthouse Gauntlight. A group of adventurers called the roseguard fought and defeted her but the rogue named Otari died. In his name, a village near the lighthouse was named after him. We know she wishes to bring her diety back to power and is a powerful sorceress.