Felder Sorcerers are masters of the curls of decay, capable of vomiting streams of brackish slime that wither the soul, or bestowing pestilential power upon their allies. They love to corrupt, and can even infect the environment with mystical phenomena.

Armies of Putrescents rarely go into battle without a Fel-Sorcerer. This vessel of abject magic launches incantations mixed with borborygma that contaminate the enemy. Following the Arcanum Optimar, many of these sorcerers can also summon plague-stricken persistent spells that they bend to their whims.