The daughter of the Faceless One, a sorcerer & guardian of the precious Ram Stone, Evil-Lyn first met Skeletor when she was a young sorceress. She instantly recognised his power & potential. Attracted to power, Evil-Lyn fell in love with Skeletor and therefore dedicated her knowledge, skills and services to him. She was quickly established as one of his most influential, intellectual & dangerous henchmen.
However, Skeletor suffered many defeats. Evil-Lyn's own desire for more power caused her to grow frustrated. As such, she lost her love for Skeletor and she became a lack-luster servant who often schems to overthrow him. Unfortunately for her, Skeletor continues to have a greater intellect. As such, she still reluctantly serves him, but continues to find any opportunity to topple her former love.
Evil-Lyn has inherited magical abilities. As a sorceress she can cast spells. However, having sought more power, she has chosen to follow the path of dark magic. The strength of her spells is dramatically increased when she uses her staff to help focus her magic.
Among the variety of spells she has cast, Evil-Lyn has created large desert storms, transformed herself into shadows (which also doubled as a method of travel to egress dangerous battles), summoned meteor showers, and completely razed large forests turning the Earth into lifeless dirt. The spell she is seen most regularly using is an energy blast, which she usually channels from her magical staff, although at times she casts them with her bare hands.
In the 1983 Filmation series, she also shows the ability to transform her appearance, mainly for the purpose of sneaking into the Royal Palace or tricking different individuals into bringing her powerful magical artifacts. In the 2002 series, she does not utilize this ability, aside from transforming into a siren with the ability to control a subject's mind with her song.