William Garst is one of the four mages on the second floor of Sorcerous Sundries. He and his comrades will attack Gorion's Ward and party if they ignore Niemain's warnings.
William only uses the following spells in combat:
- Horror
- Melf's Acid Arrow (×2)
- Larloch's Minor Drain (×5)
After casting these spells, he will attack with his quarterstaff.