Void Yai

is an Oni

CR: 20
XP: 307,200
Size: Huge
Type: Outsider
Tags: giant, native, oni, shapechanger
Initiative: +6
Senses: darkvision 60 ft., low-light vision, true seeing
AC: 36, touch 9, flat-footed 35 (+9 armor, +1 Dex, +18 natural, –2 size)
HP: 379 (23d10+253); regeneration 15 (fire or good spells)
Saves: Fort +24, Ref +9, Will +21
Speed: 40 ft., fly 40 ft. (good); 60 ft., fly 60 ft. without armor
Melee: mwk greatclub +39/+34/+29/+24 (3d8+25/19–20) or 2 slams +38 (2d6+17)
Space: 15 ft.
Reach: 15 ft.
Abilities: Str 44, Dex 15, Con 32, Int 18, Wis 23, Cha 25
Attacks: Base Atk +23; CMB +42; CMD 54
Feats: Awesome Blow, Cleave, Combat Reflexes, Critical Focus, Improved Bull Rush, Improved Critical (greatclub), Improved Initiative, Improved Vital Strike, Iron Will, Power Attack, Staggering Critical, Vital Strike
Skills: Acrobatics +17 (+25 when jumping), Bluff +30, Fly +20, Intimidate +30, Knowledge (arcana) +27, Knowledge (history) +24, Knowledge (nobility) +24, Knowledge (planes) +27, Perception +29, Sense Motive +29, Spellcraft +24, Use Magic Device +30
Languages: Common, Giant
Organization: solitary
Treasure: double (masterwork full plate, masterwork greatclub, other treasure)