Medium fiend, Lawful Evil
| Armor Class | 13 (natural armor) |
|---|---|
| Hit Points | 52 (8d8 + 16) |
| Speed | 40 ft. |
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 18 (+4) | 13 (+1) | 14 (+2) | 8 (-1) | 12 (+1) | 11 (+0) |
| Saving Throws | — |
|---|---|
| Skills | Perception +5, Stealth +3 |
| Damage Vulnerabilities | — |
| Damage Resistances | — |
| Damage Immunities | poison |
| Condition Immunities | poisoned |
| Senses | darkvision 120 ft., passive Perception 15 |
| Languages | Infernal, telepathy 30 ft. |
| Challenge | 2 |
The sewer king can comprehend and verbally communicate with any Beast.
Melee Attack Roll: +6 to hit, reach 5 ft., one target. Hit: 8 (1d8 + 4) piercing damage plus 7 (2d6) acid damage. If the target is a creature, it must succeed on a DC 12 Constitution saving throw or have the poisoned condition until the start of the sewer king's next turn.
The sewer king chitters and summons a swarm of rats to its aid. The swarm appears in an unoccupied space within 30 feet of the sewer king that the sewer king can see. It acts as the sewer king's ally, obeys the sewer king's commands, and takes its turn immediately after the sewer king's. The swarm remains until it dies, the sewer king dies, or until the sewer king dismisses it as an action.