Savolla

Savola is a boss-fight in the videogame The Witcher and was described as a sorcerer "as powerful as he is insane" - he was responsible for controlling a Frightener (presumably of his own making) by which to break down the defences of the Witchers' castle and allow a band of bandits to raid the area.

Savola also made sure to keep his presence known by occassionally firing powerful bolts of magic at any who strayed too near - when he was finally confronted he showcased the ability to teleport as well as numerous other mystical powers but was ultimately to fall by the blade of the legendary Witcher.