Doctor Zlovol was a Simic viromancer, who performed unethical experiments regarding the spread of dangerous diseases. The victims and their remains (both physical and spiritual) would have been handed to Orzhov contractors. However, Zlovol himself fell victim to Orzhov legal trickery when he failed to report the guildless deceased, and was sued for this failure. With Teysa Karlov in the service of the prosecutor, he was found guilty of violating the contract.
The word "zlovol" is a root of Czech adjective "zlovolný", meaning "sinister".