Creature profile
| Type | Large construct, unaligned |
|---|---|
| Armor Class | 18 |
| Hit Points | 104 (11d10 + 44) |
| Speed | 25 ft., swim 30 ft. |
| Ability Scores | STR 19, DEX 8, CON 18, INT 7, WIS 12, CHA 5 |
| Saves and Skills | Strength +8, Constitution +8; Athletics +8 |
| Senses | darkvision 60 ft., passive Perception 11 |
| Languages | understands Common and Ignan |
| Challenge | 7 (2,900 XP) |
Traits
Two-State Chassis. In deep water the golem’s speed increases to 30 feet and its fists deal cold damage; in shallow or no water they deal fire damage. Maintenance Port. A creature adjacent to it may use an action and a DC 16 Arcana or smith’s tools check to remove its reactions.
Actions
Multiattack. Two Piston Fist attacks. Piston Fist. Melee Weapon Attack: +8 to hit, reach 10 ft.; 13 (2d8 + 4) bludgeoning plus 4 (1d8) fire or cold. Steam Vent (Recharge 5-6). Creatures in a 15-foot cone make a DC 15 Dexterity save or take 22 (5d8) fire damage, half on success.
Tactics and roleplaying
The golem blocks drain controls and changes mode when a valve turns. It shuts down after three successful maintenance commands, when the Regent issues a stop order, or when its assigned ring reaches a safe temperature.
Game Master guidance
This entry is complete for table use. Apply the listed defenses, actions, and encounter behavior directly. If the creature is used outside its original adventure, preserve its surrender trigger and primary motivation so a social solution remains as usable as combat.