Armor Class 13 (natural armor)
Hit Points 126 (11d12 + 55)
Speed swim 50 ft.
Skills Perception +3
Senses blindsight 60 ft., passive Perception 13
Languages Aquan
Challenge 5
Blood Frenzy. Obliteros has advantage on melee attack rolls against any creature that doesn't have all its hit points.
Water Breathing. Obliteros can breathe only underwater.
Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 22 (3d10 + 6) piercing damage.
WDH, p. 66