The material below is Open Game Content from a 3PP Source
This humanoid is mostly hidden behind plates of elaborate golden armor, the spaces in between revealing flesh of black stone.
Marut (CR 15; 51,200 XP)
LN Large outsider (extraplanar, inevitable, lawful)
Init +3; Senses darkvision 60 ft., low-light vision, true seeing; Perception +26
AC 30, touch 13, flat-footed 26
(+3 Dex, +1 dodge, +17 natural, –1 size)
hp 214 (16d10+126); regeneration 10 (chaotic)
Fort +16, Ref +8, Will +13
Defensive Abilities constructed; DR 15/chaotic; SR 26
Speed 30 ft.
Melee 2 slams +27 (2d6+12 plus 3d6 electricity or sonic and blindness or deafness)
Space 10 ft.; Reach 10 ft.
Special Attacks fists of lightning and thunder
Spell-Like Abilities (CL 16th; concentration +23)
Constant—air walk, true seeing
At will—dimension door, fear (DC 21), greater command (DC 22), greater dispel magic, mass inflict light wounds (DC 22), locate creature
1/day—chain lightning (DC 23), circle of death (DC 23), mark of justice, wall of force
1/week—earthquake (DC 25), geas/quest, plane shift (DC 22)
Str 35, Dex 16, Con 23, Int 12, Wis 17, Cha 24
Base Atk +16; CMB +29; CMD 43
Feats Ability Focus (fists of lightning and thunder), Awesome Blow, Combat Casting, Dodge, Improved Bull Rush, Improved Vital Strike, Power Attack, Vital Strike
Skills Diplomacy +26, Intimidate +26, Knowledge (planes) +20, Knowledge (religion) +17, Perception +26, Sense Motive +22, Survival +22; Racial Modifiers +4 Perception
Organization solitary, pair, or patrol (3–5)
Fists of Lightning and Thunder (Su) A marut's fists strike with the power of a thunderstorm. For any given slam attack, a marut can choose whether that attack uses lightning or thunder. A lightning attack deals an additional 3d6 points of electricity damage, and the resulting flash blinds the target for 2d6 rounds (Fortitude DC 26 negates the blindness). A thunder attack deals an additional 3d6 points of sonic damage, and the resulting thunderclap deafens the target for 2d6 rounds (Fortitude DC 26 negates the deafness). The save DCs are Constitution-based.
Behemoths of onyx and golden armor, maruts shake the ground when they walk, each thunderous step ringing a death knell for those they've come to take. Rarely seeming to hurry, a marut's onslaught is deliberate, purposeful, and relentless. Its quarry may impede it or flee, running for decades or centuries, but from the initial meeting onward, the target must always look over its shoulder with the knowledge that, like death itself, the marut is ever at its heels, slowly but surely approaching, bringing balance through inevitable oblivion.
Maruts primarily target those mortal souls who have artificially extended their lifespans beyond what is feasible for their race, such as liches and other powerful magic users. Extraordinary but natural means of cheating death are sometimes also punished, such as the magistrate who murders an entire starving town to save himself, or those who foresee their own deaths via divination magic and are therefore able to avoid them.
Although they are capable of speaking eloquently in any language, and frequently gather vast amounts of information from those who are intimidated by their mere presence, maruts rarely engage in conversation or strategic alliances with mortals. Even on the battlefield, the juggernauts prefer to remain silent, knowing that their targets are already aware of their own transgressions and that all mortals secretly harbor dreams of immortality.