# Underworld Sentinel

*Huge* *Undead* *neutral*

- **Armor Class:** 17 (natural armor)
- **Hit Points:** 126 (12d12+48)
- **Speed:** walk 40 ft.
- **Challenge Rating:** 10 (5,900 XP)
- **Source:** Tome of Beasts 3, page 381

| STR | DEX | CON | INT | WIS | CHA |
| --- | --- | --- | --- | --- | --- |
| 23 (+6) | 15 (+2) | 18 (+4) | 10 (+0) | 16 (+3) | 14 (+2) |

- **Saving Throws**: Dex +6, Con +8, Wis +7
- **Skills:** perception +3
- **Damage Immunities:** poison
- **Damage Resistances:** necrotic; nonmagic B/P/S attacks
- **Condition Immunities:** charmed, exhaustion, poisoned
- **Senses:** blindsight 60', darkvision 120', passive Perception 17
- **Languages:** Darakhul, Giant, Undercommon

### Special Abilities

- **Passage Guardian:** Can make an opportunity attack when a hostile creature moves within its reach as well as when a hostile creature moves out of its reach. It gets one extra reaction that be used only for opportunity attacks.
- **Turn Immunity:** Is immune to effects that turn undead.
- **Undead Nature:** Doesn't require air food drink or sleep.

### Actions

- **Multiattack:** Two Scythe or Death Knell attacks.
- **Scythe:** Melee Weapon Attack: +10 to hit, 15 ft., one target, 17 (2d10+6) slashing damage + 10 (3d6) necrotic.
- **Death Knell:** Ranged Spell Attack: +7 to hit, 60 ft., one target, 16 (3d8+3) necrotic or 22 (3d12+3) necrotic if the target is missing any of its hp.
- **Grim Reaping (Recharge 5-6):** Spins with its scythe extended and makes one Scythe attack vs. each creature within its reach. A creature that takes necrotic from this attack can't regain hp until the end of its next turn.