Arcane Eye (CR 14)

A large bulbous orb covered in rune carved chitinous plates with six tentacles hovers menacingly before you. Where a mouth should be are jagged tusks and multiple gill flaps that open and close rhythmically as its singular central eye stares unblinking at you. As its four large tentacles writhe, its two smaller tentacles, each ending in three digit-like protrusions move with grace, gathering arcane energies that coalesce in a globe of flames about to be unleashed with devastating effect. 

XP 38,400

NE Large aberration (aquatic)

Init +6; Senses darkvision 60 ft., low-light vision, all-seeing; Perception +27

DEFENSE

AC 25, touch 12, flat-footed 23 (+2 Dex, +1 dodge, +13 natural, –1 size)

hp 98 (13d8+39); aqueous regeneration, electricity healing

Fort +9, Ref +6, Will +15

Immune electricity; SR 15