Star Spawn Larva Mage
Medium Aberration, Chaotic EvilAC 16 (natural armor)
HP 168 (16d8 + 96)
Speed 30 ft.
STR
17 (+3)
Save +3
DEX
12 (+1)
Save +6
CON
23 (+6)
Save +6
INT
18 (+4)
Save +4
WIS
12 (+1)
Save +6
CHA
16 (+3)
Save +8
Saving Throws DEX +6, WIS +6, CHA +8
Skills Perception +6
Resistances Cold; Bludgeoning, Piercing, Slashing (from nonmagical attacks)
Immunities Psychic
Condition Immunities Charmed, Frightened, Paralyzed, Petrified, Poisoned, Restrained
Senses darkvision 60 ft., Passive Perception 16
Languages Deep Speech
CR 16
Traits
Return to Worms. When the mage is reduced to 0 hit points, it breaks apart into a swarm of insects in the same space. Unless the swarm is destroyed, the mage reforms from it 24 hours later.
Actions
Multiattack. The mage makes three Slam or Eldritch Bolt attacks.
Slam. 8 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage, and the target must succeed on a 19 Constitution saving throw or be poisoned until the end of its next turn.
Eldritch Bolt. 8 to hit, range 60 ft., one target. Hit: 19 (3d10 + 3) force damage.
Plague of Worms (Recharge). Each creature other than a star spawn within 10 feet of the mage must succeed on a 19 Dexterity saving throw or take 22 (5d8) necrotic damage and be blinded and restrained by masses of swarming worms. The affected creature takes 22 (5d8) necrotic damage at the start of each of the mage's turns. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Reactions
Feed on Weakness. When a creature within 20 feet of the mage fails a saving throw, the mage gains 10 temporary hit points.
Legendary Actions
Slam. The mage makes one Slam attack.
Eldritch Bolt (Costs 2 Actions). The mage makes one Eldritch Bolt attack.
Feed (Costs 3 Actions). Each creature restrained by the mage's Plague of Worms takes 13 (3d8) necrotic damage, and the mage gains 6 temporary hit points.