rare ne medium aberration 

Perception +21

Languages Aklo, Common

Skills Acrobatics +26, Athletics +22, Deception +27, Stealth +26, Survival +19

Str +5 Dex +7 Con +5 Int +0 Wis +0 Cha +8

Kaiju Blood Each rivka gains resistances and offensive powers by feasting on the primordial blood of a kaiju. The type of damage the rivka resists and the type of damage dealt by its Kaiju Ray depend on the kaiju it last fed upon. Some of the most typical rivkas include those that feed on Vrukrid (cold), Sevian (negative), Gralu (acid), Faloufalud (fire), or Yorak (electricity).

AC  32; Fort +24, Ref +26, Will +17

HP 220

Speed 30 feet

Melee [>] claw +26 (agile, finesse), Damage 3d6+11 slashing

Primal Innate Spells DC 33; 5th charm (at will), illusory disguise (×3)

Eviscerate [>>] Requirements The rivka has not attacked yet this turn; Effect The rivka lashes out with four of its razor-like claws. It makes four Strikes: the first at its highest attack bonus, the next two with a –4 penalty to their attack rolls, and the last one with a –8 penalty. This ability counts as four Strikes for the purpose of its multiple attack penalty.

Kaiju Ray [>>] (evocation, primal) The rivka opens its maw and projects a 60-foot line of primal energy that deals 14d6 damage (DC 32 basic Reflex save). The type of damage dealt by the ray depends on which kaiju the rivka has most recently fed from (see above). The rivka can't use Kaiju Ray again for 1d4 rounds.

Fists of the Ruby Phoenix #2: Ready? Fight!, page 83.