| Name | CR | MR | Type | Environment |
| Hell Hound | 4 | 1 | outsider (evil, extraplanar, fire, lawful, mythic) | any (Hell) |
| Hell Hound, Nessian Warhound | 11 | 4 | outsider (evil, extraplanar, fire, lawful, mythic) | any (Hell) |
| Human Skeleton | 1 | 1 | undead (mythic)
| any |
| Hydra | 9 | 3 | magical beast (mythic) | temperate marshes |