Savolla 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.

Savolla 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.

He's a minion of Azar Javed.

           Witcher Villains

Bonhart | Emhyr var Emreis | Philippa Eilhart | Vilgefortz

The Witcher
Azar Javed | Jacques de Aldersberg | Professor | Roderick de Wett | Salamandra | Savolla

The Witcher 2: Assassin of Kings
Bernard Loredo | Dethmold | Henselt | Letho of Gulet | Lucius Maravel | Radovid V the Stern | Ravanen Kimbolt | Serrit & Egan | Sheala de Tancarville | Shilard Fitz-Oesterlen | Stennis

The Witcher 3: Wild Hunt
Bernard Tulle | Birna Bran | Bloody Baron | Caleb Menge | Caranthir | The Crones | Cyprian Wiley | Earl | Eredin | Hubert Rejk | Imlerith | John Verdun | Morkvarg | Nathaniel | Nithral | Wild Hunt

Hearts of Stone
The Caretaker | Ewald Borsodi | Gaunter O'Dimm | Horst Borsodi | Olgierd von Everec

Blood and Wine
Dettlaff van der Eretein | Orianna | Rapunzel | Redbeard | Syanna | Unseen Elder | Wicked Witch