| Category | Mage Guilds |
| Region | Hells Womb |
| Headquarters | Birungrith |
| Size | 200+ |
| Race | any |
| Alignment | evil |
| Deity | Thasmudyan |
| Symbol | ghoul holding entrails |
| Founder | Katrana Dumu-loc |
| Established | 12 Dreamer 1556 |
Ilfengrim is a mage guild dedicated to the creation of undead and the advancement of necromancy. Shortly after the defeat of the Black Tide of Thasmuduan, Katrana Dumu-loc formed Ilfengrim as a means of replenishing the ranks. This group shares the fortress Birungrith with a cell of the Cult of Worms.
| Cell | Region | Location | Leader |
|---|---|---|---|
| Black Cluster | Aerie of Dragons | Gaard Goraag | unknown |
| Ushnaga | Grashakh | Argruxiel | unknown |