Armor Class 17 (natural armor)
Hit Points 136 (16d10 + 48)
Speed 30 ft., climb 30 ft.
Saving Throws STR +9, CON +7
Skills Perception +3
Damage Resistances cold, fire, lightning
Damage Immunities poison
Condition Immunities charmed, exhaustion, frightened, poisoned
Senses darkvision 120 ft., passive Perception 13
Languages Abyssal, telepathy 120 ft.
Challenge 11
All-Around Vision. The vlazok can't be surprised.
Blood Frenzy. The vlazok has advantage on melee attack rolls against any creature that doesn't have all its hit points.
Magic Resistance. The vlazok has advantage on saving throws against spells and other magical effects.
Spider Climb. The vlazok can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Multiattack. The vlazok makes two Gore attacks.
Gore. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 23 (4d8 + 5) piercing damage, and if the target is a Large or smaller creature, it has the prone condition.
Stomp. Melee Weapon Attack: +9 to hit, reach 5 ft., one prone creature. Hit: 27 (4d10 + 5) bludgeoning damage.
VEoR, p. 238