Star Spawn Larva Mage

Star Spawn Larva Mage
CR 16Medium Aberration, Chaotic Evil
Reveal Stat Block
Armor Class
16 (natural armor)Hit Points
168 (16d8 + 96)Speed
30 ft.str
17
+3
dex
12
+1
con
23
+6
int
18
+4
wis
12
+1
cha
16
+3
Traits
Return to Worms.When the larva 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 larva mage reforms from it 24 hours later.
Actions
Slam.mw 8 to hit, reach 10 ft., one target. ({@damage 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.
Plague of Worms.Each creature other than a star spawn within 10 feet of the larva mage must make a 19 Dexterity saving throw. On a failure the target takes 22 (5d8) necrotic damage and is blinded and restrained by masses of swarming worms. The affected creature takes 22 (5d8) necrotic damage at the start of each of the larva 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.
Legendary Actions.The creature can take 3 legendary actions...
Cantrip (Costs 2 Actions).The larva mage casts one cantrip.
Slam (Costs 2 Actions).The larva mage makes one slam attack.
Feed (Costs 3 Actions).Each creature restrained by the larva mage's Plague of Worms takes 13 (3d8) necrotic damage, and the larva mage gains 6 temporary hit points.
Reactions.Reactions the creature can take:
Feed on Weakness.When a creature within 20 feet of the larva mage fails a saving throw, the larva mage gains 10 temporary hit points.