Quantum Cat

Quantum Cat CR 5

XP 1,600
N Large undead
Init +6; Senses certainty, darkvision 60 ft., low-light vision, scent; Perception +20

AC 17, touch 11, flat-footed 15 (+2 Dex, +6 natural, –1 size)
hp 27 (6d8); extended maximized false life
Fort +0, Ref +4, Will +10
Defensive Abilities decoherence; Immune negative energy, positive energy

Speed 40 ft.
Melee bite +10 (2d6+6 plus entanglement), 2 claws +10 (1d8+6 plus entanglement)
Space 10 ft.; Reach 5 ft.
Special Attacks entanglement, pounce, rake (2 claws +10, 1d8+6)
Spell-Like Abilities (CL 12th; concentration +11)

Constant—blink
At will—quickened dimension door (self only)
3/day—resist energy as an immediate action
1/day—extended maximized false life

Str 23, Dex 15, Con —, Int 2, Wis 19, Cha 8
Base Atk +4; CMB +11; CMD 23 (27 vs. trip)
Feats Improved Initiative, Toughness (B), Weapon Focus (bite, claw)
Skills Acrobatics +10, Perception +20; Racial Modifiers +4 Acrobatics, +8 Perception
SQ superposition

Environment any
Organization solitary or pair
Treasure none

Certainty (Su) A quantum cat instantly knows when it is being perceived by another creature, and is aware of any creature that is currently perceiving it as if it had 120-foot blindsight.
Decoherance (Su) Whenever a targeted attack fails to affect a quantum cat as a result of the cat’s blink spell-like ability, the cat shifts entirely onto the Ethereal Plane, as if using ethereal jaunt instead of blink, until the beginning of its next turn.
Entanglement (Su) Whenever a quantum cat hits an opponent with a melee attack, the opponent and the quantum cat are linked until the end of the cat’s next turn. Until then, the cat and the linked creature threaten and can attack one another with melee attacks as if they were in adjacent squares with no intervening cover, regardless of any distance or barriers between them. Neither provokes attacks of opportunity for leaving squares threatened by the other. Miss chances due to concealment still apply, as normal.
Superposition (Su) A quantum cat can move through or occupy the space of any creature as if that creature were three size categories larger than the quantum cat.