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.

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage, and the target must succeed on a DC 19 Constitution saving throw or be poisoned until the end of its next turn.

Eldritch Bolt.

Ranged Spell Attack: +8 to hit, range 60 ft., one target. Hit: 19 (3d10 + 3) force damage.

Plague of Worms (Recharge 6).

Each creature other than a star spawn within 10 feet of the mage must succeed on a DC 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.

Spellcasting.

The mage casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 16):

At will: mage hand, message, minor illusion
1/day: dominate monster

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

The star spawn larva mage can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The star spawn larva mage regains spent legendary actions at the start of its turn.

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.

Environment: Mountain

Star Spawn Larva Mage