Statistics
| Creature type | Medium construct, unaligned |
|---|---|
| Armor Class | 18 (bronze shell) |
| Hit Points | 33 (6d8 + 6) |
| Speed | 25 ft. |
| Ability Scores | STR 16 (+3), DEX 11 (+0), CON 13 (+1), INT 1 (-5), WIS 3 (-4), CHA 1 (-5) |
| Saves and Skills | Strength +5; immune to poison and psychic damage |
| Senses | blindsight 60 ft. (blind beyond), passive Perception 6 |
| Languages | understands its creator’s commands but cannot speak |
| Challenge | 1 (200 XP) |
Traits
Constructed Nature. The sentinel does not breathe, eat, drink, or sleep. It is immune to charmed, exhaustion, frightened, paralyzed, petrified, and poisoned. Mute Mechanism. An adjacent creature can use an action and pass a DC 14 Sleight of Hand check to suppress Resonant Blow until the packing is removed.
Actions
Multiattack. Two Resonant Blows. Resonant Blow. Melee Weapon Attack: +5 to hit; 7 (1d8 + 3) thunder damage. A target standing on metal must pass a DC 12 Strength save or fall prone.
Tactics and Roleplaying
It blocks narrow metal approaches and does not pursue beyond its assigned chamber. Muting it creates a safer tactical solution, and destroying the bell housing reduces its AC to 15.