Tzitzimitl

Crusted with rock, this immense skeletal figure flies swiftly through the air, strange gasses clinging to its nightmarish form.
 

Tzitzimitl (CR 19)

Gargantuan Undead
Alignment: Neutral Evil
Initiative: +9
Senses: Arcane Sight, Darkvision 60 feet, True Seeing; Perception +31
  Speed: 50 feet, Fly 60 feet (good)
Space: 20 feet
 

Defense

Armor Class: 35, touch 11, flat-footed 30 (+5 Dex, +24 natural, -4 size)
Hit Points: 319 (22d8+220) Fast Healing 15
Saving Throws: Fort +17, Ref +14, Will +19
Channel Resistance +4, light to dark
Damage Reduction: 15/ bludgeoning and good
Immunity: cold, electricity, undead traits
Energy Resistance: fire 15
Spell Resistance: 30
 

Offense

Melee: bite +26 (2d8+14 plus 3d6 electricity and Energy Drain), 2 claws +27 (2d6+14/19-20 plus 3d6 electricity)
Reach: 20 feet
Ranged: eye beam +17 touch (10d6 electricity and 10d6 force)
  Special Attacks: eclipse, Energy Drain (2 levels, DC 31)
  Spell-Like Abilities (CL 19th; Concentration +29):

Statistics

StrDexConIntWisCha
39 (+14) 21 (+5) - 20 (+5) 23 (+6) 30 (+10)
Base Attack Bonus: +16
CMB +34 (+36 Bull Rush)
CMD 49 (51 vs. Bull Rush)
  Feats: Awesome Blow, Combat Reflexes, Powerful Maneuvers, Improved Critical (claw), Improved Initiative, Lightning Reflexes, Precise Shot, Vital Strike, Weapon Focus (claw)
  Skills: Fly +35, Knowledge (arcana) +28, Knowledge (nature) +27, Knowledge (planes) +25, Knowledge (religion) +30, Perception +31, Sense Motive +31, Spellcraft +23, Survival +21, Use Magic Device +30
  Languages: Abyssal, Aklo, Celestial, Common
 

Special Abilities

Eclipse (Su)

Anytime a tzitzimitl casts deeper darkness, any creatures in the area of darkness when it is created take 8d6 points of cold damage (Fortitude DC 31 half). Any creature that takes damage from this effect becomes staggered as long as it remains in the area of darkness and for 1d4 rounds after it leaves that area. The save DC is Charisma-based.

Eye Beam (Su)

As a standard action, a tzitzimitl can fire a glowing beam of force from its eyes at a range of 100 feet as a ranged touch attack dealing 10d6 points of force damage and 10d6 points of electricity damage.

Light to Dark (Su)

As an immediate action up to three times per day, a tzitzimitl can convert a positive energy effect that affects it into negative energy. Doing so transforms the entire effect, such that it affects other creatures as well. A tzitzimitl can transform channeled positive energy in this way even if the positive energy would not otherwise harm it.
 

Ecology

Environment: Any
Organization: solitary
Treasure: standard

  Enigmatic creatures of darkness, some cultures claim tzitzimitls attack and consume entire suns to "shut down worlds" in preparation for the end of days. Sages say that these creatures come from the cold, dark places between the stars, and that in the darkness of any eclipse, one can see their immense, world-darkening shadows.
  Some claim ancient and forgotten deities of death and destruction created the first tzitzimitls as instruments of apocalypse, while others speculate they come from faraway worlds where immense planets teem with creatures of this scale, and that the immortal dead of these dark globes are banished to other worlds to spread devastation.
  Tzitzimitls as a whole offer neither affirmation nor denial for these claims, and in fact seem to glory in such legends. Certainly, the arrival of a tzitzimitl upon a world heralds the advent of a time of great trouble, although whether or not the tzitzimitl actually presages such dark times or is the cause of them is a matter of debate.
  On some planets, tzitzimitls have already arrived, yet they lie dormant in ancient tombs, imprisoned ages ago by heroes who are long forgotten today. A tzitzimitl is 50 feet tall.