Armor Class 18 (natural armor)
Hit Points 161 (17d10 + 68)
Speed 60 ft.
Damage Resistances [object Object]
Damage Immunities fire, poison, psychic
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses blindsight 120 ft., passive Perception 10
Languages understands the languages of its creator but can't speak
Challenge 10
Immutable Form. The gearkeeper is immune to any spell or effect that would alter its form.
Rapid Shifting. Opportunity attacks made against the gearkeeper have disadvantage.
Whirling Blades. Any creature that starts its turn within 5 feet of the gearkeeper takes 4 (1d8) slashing damage.
Multiattack. The gearkeeper makes two Arm Blade attacks, or one Arm Blade attack and one Spear Launcher attack.
Arm Blade. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 18 (3d8 + 5) slashing damage.
Spear Launcher. Ranged Weapon Attack: +9 to hit, range 90 ft., one target. Hit: 12 (2d6 + 5) piercing damage, and the target is knocked prone.
Shrapnel Blast (Recharge 5–6). The gearkeeper jettisons a spray of jagged metal in a 30-foot cone. Each creature in the area must make a DC 15 Dexterity saving throw, taking 21 (6d6) piercing damage on a failed save, or half as much damage on a successful one.
Explorer's Guide to Wildemount, p. 290