Just had to do it
Hit Dice: 8d10+20 (64 hp)
Speed: 30 ft. (6 squares), climb 30 ft.
Armor Class: 15 (+1 dex, +4 natural), touch 11, flat-footed 14
Base Attack/Grapple: +6/+9
Attack: Tentacle +9 melee (1d4+3)
Full attack: 4 tentacles +9 melee (1d4+3)
Space/Reach: 5 ft./5 ft.
Special Attacks: Fragment spray, treadeasy
Special Qualities: Animate scene, artistic touch, construct traits, damage reduction 5/bludgeoning and magic, darkvision 60 ft., immunity to magic, low-light vision, tremorsense 60 ft., up the walls
Saves: Fort +2, Ref +3, Will +3
Abilities: Str 16, Dex 12, Con -, Int -, Wis 12, Cha 1
Feats: Improved Initiative
Organization: Solitary, Adorning (2), Exhibit (3+)
Challenge Rating: 10
Alignment: Always neutral
Level Adjustment: -
A mosaican mindflayer stands some six feet tall and weighs around 300 lbs.
A mosaican mindflayer attacks as its original creator ordered.
Animate Scene (Ex):
As a full round action a mosaican mindflayer can reasemble its natural form (a flat surface scene) to a life-sized version of its original guardian image, or vice versa. Beforehand it is indistinguishable from a normal mosaic scene unless Detect Magic or similiar spells are used. While in its flat form it loses all its attacks, but can then use its treadeasy ability.
Artistic Touch (Sp):
At will a mosaican may use a type of prestidigitation that allows it to change its colors to match its image(s), make itself appear soiled, old, cracked, damaged, or even newly laid, sparkling clean and flawless.
Fragment Spray (Ex):
Once every minute a mosaican mindflayer can let out a 20-foot cone of jagged stones that imbed themselves in their victim's skin, dealing 1d6 piercing and slashing damage (reflex DC 17 halves). The bits of stone within the wounds then pull themselves loose, causing an additional 1d4 damage. They form together, flying back towards the mosaican that sent them, and are reabsorbed.
Immunity to Magic (Ex):
A mosaican mindflayer is immune to any spell or spell-like ability that allows spell resistance. In addition, certain spells and effects function differently against the creature, as noted below.
A transmute rock to mud spell slows a mosaican (as the slow spell) for 2d6 rounds, with no saving throw, while transmute mud to rock heals all of its lost hit points.
A stone to flesh spell does not actually change the mosaican's structure but negates its damage reduction and immunity to magic for 1 full round.
As a full round action a mosaican mindflayer spread out upon the floor can abruptly spring up sharp stones into those transversing upon it, automatically dealing damage as caltrops for the space it occupies. It may then trip any of those who occupy its space by suddenly moving forward. To avoid being tripped its opponent must make a successful DC 16 reflex save.
A mosaican mindflayer can automatically sense the location of anything within 60 feet that is in contact with the ground, wall, or ceiling, so long as it is touching the ground, wall, or ceiling itself.
Up the Walls (Su):
A mosaican mindflayer can climb and travel on vertical surfaces or even traverse ceilings as if under the affects of a Spider Climb spell, but only while in its flat form. It gains a climb speed equal to its base speed; furthermore, it need not make Climb checks to traverse a vertical or horizontal surface (even upside down). The mosaican retains its Dexterity bonus to Armor Class (if any) while climbing, and opponents get no special bonus to their attacks against it. It can use the run action while climbing.
The mosaican's passage while flat against a service is soundless.