Zodar (CR 16)

Medium Construct
Alignment: Usually chaotic neutral
Initiative: +3 (Dex)
Languages: Cannot speak

AC: 28 (+3 Dex, +10 natural, +5 deflection), touch 18, flat-footed 25
Hit Dice: 16d10+20 (108 hp)
Fort +5, Ref +8, Will +8
Speed: 60 ft. (cannot run)
Space: 5 ft./5 ft.
Base Attack +12; Grapple +19
Attack: Slam +19 melee
Full Attack: 2 slams +19 melee
Damage: Slam 2d6+7
Special Attacks/Actions: Constrict
Abilities: Str 25, Dex 16, Con -, Int -, Wis 16, Cha 10
Special Qualities: Burst of strength, construct traits, invulnerability, wish
Feats: -
Skills: -
Advancement: 17-45 HD (Medium-size)
Climate/Terrain: Any land
Organization: Solitary
Treasure/Possessions: Magic items only

Source: Fiend Folio

Constrict (Ex): When fighting barehanded, a zodar seldom punches. Instead it attempts to grapple normally (grapple bonus +19). If the grapple attempt succeeds, then the zodar constricts its foe, dealing 1d6+7 points of damage each round the hold is maintained.

Burst of Strength (Ex): Three times per day, a zodar can double its Strength to 50 for 1 round (Str bonus +20).

Construct Traits: A zodar is immune to mind-affecting effects, poison, sleep, paralysis, stunning, disease, death effects, necromantic effects, and any effect that requires a Fortitude save unless it also works on objects. The creature is not subject to critical hits, subdual damage, ability damage, ability drain, energy drain, or death from massive damage. It cannot heal itself but can be healed through repair. It cannot be raised or resurrected. A zodar has darkvision (60-foot range).

Invulnerability (Ex): A zodar is impervious to all attacks except those from bludgeoning weapons, and the enhancement bonus (if any) of such a weapon is disregarded when determining the result of the attack.

Wish (Su): Once per year, a zodar can alter reality as if it had just cast a wish spell as a sorcerer of the same level as its Hit Dice. None has ever been known to actually use this ability more than once in a century. Even when the effect of the wish is of great importance, it is likely to be subtle and largely unrecognized as the work of the zodar.

Zodars never initiate an attack but fight in self-defense. Most often they rely on their bare hands, but some zodars (10%) favor magic weapons.