Lavawight

Medium undead, chaotic evil

Armor Class 22 (natural armor)
Hit Points 304 (32d8 + 160)
Speed 60 ft.

STR	DEX	CON	INT	WIS	CHA
25 (+7)	18 (+4)	21 (+5)	10 (+0)	18 (+4)	21 (+5)

Damage Immunities fire, necrotic, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Vulnerabilities cold
Condition Immunities charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses darkvision 60 ft., passive Perception 14
Languages Common, Infernal
Challenge 22 (41,000 XP)

Special Traits

• Heat Aura. Creatures which begin their turn within 10 feet of the lavawight take 11 (2d10) fire damage.
• Innate Spellcasting. The lavawight’s innate spellcasting ability is Charisma (spell save DC 20, +12 to hit with spell attacks). It can innately cast the following spells, with no need for material components:
  • At will: dimension door, fireball, flame arrow, wall of fire
  • 3/day: counterspell
• Life Drain. If the lavawight hits a creature with a Claw or Skull Butt attack, that creature must succeed on a DC 20 Constitution saving throw or its hit point maximum is reduced by an amount equal to the fire damage taken, and the lavawight regains hit points equal to that amount. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A creature killed by this reduction is turned into a pile of ash and may only be restored to life with a resurrection, true resurrection, or wish spell.
• Molten Healing. All fire-based creatures (such as fire elementals and magma mephits), including the lavawight itself, which begin their turn within 10 feet of the lavawight regain 10 hit points. The lavawight dies if it is reduced to 0 hit points, and this ability does not function.
• Rend. If the lavawight hits the same target with two Claw attacks in the same turn, it deals an additional 34 (6d8 + 7) slashing damage to that target.
• Turn Resistance. The lavawight has advantage on saving throws against any effect that turns undead.

Actions

• Multiattack. The lavawight makes two Claw attacks and one Skull Butt attack.
• Claw. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 25 (4d8 + 7) slashing damage plus 11 (2d10) fire damage. If the target is a creature, see Life Drain above.
• Skull Butt. Melee Weapon Attack: +14 to hit, reach 5 ft., one target. Hit: 17 (3d6 + 7) bludgeoning damage plus 16 (3d10) fire damage. If the target is a creature, see Life Drain above.