| Name | CR | MR | Type | Environment |
| Phoenix | 18 | 7 | magical beast (fire, mythic) | warm desert and hills |
| Plague Swarm, Bat Plague Swarm | 17 | 8 | magical beast (mythic, swarm) | — |
| Plague Swarm, Locust Plague Swarm | 15 | 8 | magical beast (mythic, swarm) | — |
| Plague Swarm, Rat Plague Swarm | 11 | 8 | magical beast (mythic, swarm) | — |
| Portunus | 16 | 6 | outsider (elemental, extraplanar, mythic, water) | any aquatic (Plane of Water) |