Welcome back once more to Frogtober! Today's theme is "precious," and the frog that Hugo Solis (https://www.deviantart.com/butterfrog) illustrated is certainly that. More than that, though, the prismafrog is a guardian of other, perhaps more precious, treasure. It has an array of prismatic beams and eye beams it can fire to really wreck treasure looting PCs' days.

I hope you enjoy the prismafrog. See you tomorrow with something decidedly less blingy. The croaking crown jewel

This towering golden frog has a line of expensive gems of varying sizes and color down its back. Its left eye is a diamond and its right eye is a garnet. Light emanates from the gems and the frog itself.
Prismafrog      CR 19
XP 204,800
N Large construct
Init +11; Senses blindsight 60 ft., darkvision 60 ft., low-light vision; Perception +0
AC 34, touch 20, flat-footed 23 (+11 Dex, +14 natural, –1 size)
hp 212 (28d10+58); fast healing 10
Fort +9, Ref +20, Will +9
DR 20/adamantine and magic; Immune construct traits, gem immunities
Weaknesses susceptible to darkness
Melee slam +33 (2d6+6)
Ranged eye ray +33 touch (heightened [9th] disintegrate or imprisonment) and prismatic ray +33 touch (prismatic ray)
Spell-Like Abilities (CL 28th; concentration +30)
At will—sunburst (DC 20)
1/day—prismatic sphere (DC 21)
Str 23, Dex 33, Con —, Int —, Wis 10, Cha 15
Base Atk +28; CMB +35; CMD 56 (60 vs. trip)
Feats Toughness[B]
Environment any
Organization solitary or laserium (2–6)
Treasure triple (body worth 105,000 gp, intact gem worth 5,000 gp each)
Eye Ray (Ex) A prismafrog’s eye ray has a range of 240 feet. Unless commanded otherwise, the prismafrog has an equal chance to fire a ray that operates like disintegrate (heightened to a 9th-level spell) or imprisonment. The save DC for either effect is 26. The prismafrog can use one prismatic ray one eye ray as a full attack action.
Gem Immunities (Su) While all of a prismafrog’s gems are intact, it is immune to all forms of energy damage. Destroying a gem removes the specified energy immunity and the use of a prismatic ray. Each gem has hardness 20 and 60 hit points. Amethyst: No immunity and violet prismatic ray; Azurite: No immunity and indigo prismatic ray; Citrine: Immunity to electricity and yellow prismatic ray; Diamond: Immunity to force and disintegrate eye ray; Emerald: Immunity to sonic and green prismatic ray; Garnet: No immunity and imprisonment ray; Ruby: Immunity to fire and red prismatic ray; Sapphire: Immunity to cold and blue prismatic ray; Topaz: Immunity to acid and orange prismatic ray.
Prismatic Ray (Su) A prismafrog’s prismatic ray has a range of 240 feet. When the prismafrog targets a creature, roll a d8 to determine the color of the beam(s) that fire at the target: 1—red—2d4x10 points of fire damage; 2—orange—2d4x10 points of acid damage; 3—yellow—2d4x10 points of electricity damage; 4—green—poison (poison [save DC 26, frequency 1/round for 6 rounds; initial effect death; secondary effect 1 Con; cure 2 consecutive saves); 5—blue—flesh to stone (DC 26 Fort save negates); 6—insanity (DC 26 Will save negates); 7—plane shift (DC 26 Will save negates); 8—roll twice, ignoring results of 8).
The prismafrog can use one prismatic ray one eye ray as a full attack action.
Susceptible to Darkness (Ex) If a prismafrog is in an area of darkness, it cannot use its eye ray or prismatic ray.

Prismafrogs are ostentatious protectors of equally ostentatious tombs and treasure vaults. Their creation is a jealously guarded secret among those who know how to craft them. Arcanarunas who set up lairs to hoard their stored spell knowledge use prismafrogs to guard their lairs.

Prismafrogs are autonomous creatures with a built-in randomizer to their attacks, obviating the need for them to make choices. While they are not bright enough to decide on how to employ their attacks, they are programmed to use sunburst to counter darkness effects that render them ineffective. Intelligent controllers can direct prismafrogs to use specific eye rays and prismatic rays, but this lack of randomness means directed prismafrogs cannot use a combined ray.

A prismafrog’s body is made of 1,500 pounds of adamantine and gold, plus gems required for the eye ray and prismatic ray abilities (amethyst, azurite, citrine, diamond, emerald, garnet, ruby, sapphire, and topaz) worth a total of 150,000 gp.
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