Melroch's Place: Planescape Campaign

Planescape Monstrous Supplement

Gear Spirit

Size / Type
Small Construct (Lawful)
Hit Dice
1d10 (6)
Initiative
+4 (Dex)
Speed
15ft, burrow 15ft
Armor Class
16 (+4 Dex, +1 Size, +1 Natural)
Attacks
Slam +2 melee; or by weapon +2 melee
Damage
Slam 1d6; or by weapon
Face / Reach
5ft by 5ft / 5ft
Sp. Attacks
Command machinery, reduce armor
Sp. Qualities
Meld with metal, construct, SR 21, fire res. 5, cold res. 5, acid res. 5, rust vulnerability, outsider
Saves Fort +0 Ref +4 Will +4
Abilities Str 10 Dex 18 Con -- Int 10 Wis 18 Cha 10
Skills
Craft (any 3) +4
Feats
Skill Focus (craft)
Climate
Mechanus
Organization
Solitary
Rating (CR)
1
Treasure
None
Alignment
Always Lawful Neutral
Advancement
2-4HD (Small), 5-8HD (Medium), 9-12HD (Large), 13-14HD (Huge), 15+HD (Gargantuan)

This kind of creatures are constructs with free will.
Command machinery (Ex): The gear spirit can command any machinery after melting with it (assuming the machinery it’s partially metallic). The spirit can force the machine to obey his will, but within the limitations of the machine purpose (a lock can be opened or closed, a ballista could be fired upon his enemies, a lamppost could be turn on (but it couldn’t be used to attack a passerby for example)).
Reduce Armor (Ex): Every time a gear spirit hits someone who’s wearing metallic armor in melee combat, that armor looses 1 point or armor AC, if no armor AC is left, enhancement bonuses start to decay. When all AC bonuses are gone the armor is utterly destroyed.
Meld with metal (Ex): As Meld with Stone spell, but the gear spirit can meld with any form of manufactured metal or machinery.
Construct: Immune to mind-affecting, poison, paralysis, sleep, stunning, disease, death and necromantic effects, critical hits, subdual damage, ability damage, ability drain, energy drain, massive damage, any effect that relies on a Fortitude save (except if it works on object too), but they destroy at 0 hp. Darkvision 60 feet.
Outsider: Darkvision 60 feet, and can’t be raised or resurrected.

Melroch Eitheldor @ 2003

Size / Type	Small Construct (Lawful)
Hit Dice	1d10 (6)
Initiative	+4 (Dex)
Speed	15ft, burrow 15ft
Armor Class	16 (+4 Dex, +1 Size, +1 Natural)
Attacks	Slam +2 melee; or by weapon +2 melee
Damage	Slam 1d6; or by weapon
Face / Reach	5ft by 5ft / 5ft
Sp. Attacks	Command machinery, reduce armor
Sp. Qualities	Meld with metal, construct, SR 21, fire res. 5, cold res. 5, acid res. 5, rust vulnerability, outsider
Saves	Fort +0		Ref +4		Will +4
Abilities	Str 10	Dex 18	Con --	Int 10	Wis 18	Cha 10
Skills	Craft (any 3) +4
Feats	Skill Focus (craft)

Climate	Mechanus
Organization	Solitary
Rating (CR)	1
Treasure	None
Alignment	Always Lawful Neutral
Advancement	2-4HD (Small), 5-8HD (Medium), 9-12HD (Large), 13-14HD (Huge), 15+HD (Gargantuan)

This kind of creatures are constructs with free will. Command machinery (Ex): The gear spirit can command any machinery after melting with it (assuming the machinery it’s partially metallic). The spirit can force the machine to obey his will, but within the limitations of the machine purpose (a lock can be opened or closed, a ballista could be fired upon his enemies, a lamppost could be turn on (but it couldn’t be used to attack a passerby for example)). Reduce Armor (Ex): Every time a gear spirit hits someone who’s wearing metallic armor in melee combat, that armor looses 1 point or armor AC, if no armor AC is left, enhancement bonuses start to decay. When all AC bonuses are gone the armor is utterly destroyed. Meld with metal (Ex): As Meld with Stone spell, but the gear spirit can meld with any form of manufactured metal or machinery. Construct: Immune to mind-affecting, poison, paralysis, sleep, stunning, disease, death and necromantic effects, critical hits, subdual damage, ability damage, ability drain, energy drain, massive damage, any effect that relies on a Fortitude save (except if it works on object too), but they destroy at 0 hp. Darkvision 60 feet. Outsider: Darkvision 60 feet, and can’t be raised or resurrected.