These tentacles constructs follow the commands of the Ruby Weapon. A left and right tentacle that drain HPs and MPs with their attacks.
Ruby Tentacle (Left and Right) (CR 10)
N Large Construct (Boss)
Init: +0; Senses Darkvision 60 ft., low-light vision, superior optics; Perception +0
AC 21, touch 9; flat-footed 21 (+12 natural, -1 size)
hp 150  (10d10+30)
Fort +7, Ref +7, Will +7
DR 5/-; Immune Construct traits, Status effects, Water;
Speed Burrow 80 ft. [cannot be farther than 300 ft. from Ruby Weapon’s location]
Melee Left Tentacle +14 (1d8+10 MP damage plus poison and slow) and Right Tentacle +14 (4d8+10 plus frog and small)
Space 10 ft.; Reach 20 ft.
Special Attacks Comet Fall, Frog (1d4+1 rounds, DC 25), Poison (1d4+1 rounds, DC 25), Small (1d4+1 rounds, DC 25), Slow (1d4+1 rounds, DC 25)
Str 30, Dex 10, Con —, Int —, Wis 11, Cha 1
Base Atk +10; CMB +21; CMD 31
SQ Comet Fall, Improved Evasion
Comet Fall (Su)
Whenever a tentacle is destroyed, sends off a heavy rock from the sky against the foe who struck them down. This is a spell-like ability that functions like the Comet time magic spell. It casts as a 15th-level time mage.
Superior Optics (Ex)
Ruby Tentacles sees invisible creatures or objects as if they were visible.