Sunken Tower Guardian
CR 6
Half-Blue Dragon Fiendish Large Scorpion
Large Dragon
HD 5d10+10 = 38hp
DR 5/magic SR 10
Initiative: +1
AC 20 (-1 size, +11 natural) Touch 9, Flat-footed 20
BAB/Grapple: +3/+11
Atk: Claw +6 Melee (1d6+8), or Bite (1d8 +8) or Sting (1d6+2 + Poison)
Full Attack: 2 Claws +6 Melee (1d6+8), +4 Melee Bite (1d8 +4) and +4 Melee Sting (1d6+4 + Poison)
Space/Reach: 10ft/5ft
Special Attacks: Constrict 1d6+8, Improved grab, Poison, Smite Good (+5 extra damage), Breath Weapon 1/day 60 ft line of lightning (6d8 Elec dmg, Reflex 15 for half)
Special Qualities: Darkvision 60 ft, Tremorsense 60 ft, Low-light Vision, Resist Cold/Fire 5, Immune to Sleep, Paralysis and Electricity
Saves: Fort +6, Ref +1, Will +1
Abilities: Str 27 Dex 10 Con 16 Int 3 Wis 10 Cha 4
Skills: Climb +12, Hide +8, Spot +11
Feats: Multi-attack, Power attack
Poison: Fortitude Save 15, 1d4 Con
Constrict: Automatic Claw damage (1d6+8)on successful grapple.