n large animal earth 

Perception +15; low-light vision

Skills Acrobatics +12, Athletics +18, Stealth +12 (+16 in mountains)

Str +5 Dex +1 Con +5 Int -4 Wis +2 Cha -1

AC  22; Fort +18, Ref +14, Will +13

HP 90

Speed 35 feet, climb 35 feet

Melee [>] jaws +18 (reach 10 feet), Damage 2d8+11 piercing plus Grab

Melee [>] tail +18 (reach 15 feet, sweep), Damage 2d6+11 bludgeoning

Mangle [>] Requirements The zetogeki has a creature grabbed in its jaws; Effect The zetogeki mangles the grabbed creature and slams it about, dealing 3d8 bludgeoning damage (DC 26 basic Fortitude save).

Tilt Scales [>] The zetogeki shifts the scales that cover its body to better absorb kinetic energy from physical blows. The zetogeki gains resistance 10 to physical damage, but its Speeds are reduced to 10 feet. If the zetogeki gets hit for 20 or more physical damage in a single blow while its scales are tilted (before applying resistance), it stores the kinetic energy of the blow. The zetogeki can realign its scales to their regular position by taking this action again. When it does, it channels any stored kinetic energy into the next Strike it makes before the end of its turn. If the Strike hits, it deals an additional 2d8 damage. The energy is expended whether or not the Strike hits.

Bestiary 3, page 301.