Greater Lunarchidna

Spider Climb. The lunarchidna can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Sunlight Sensitivity. While in sunlight, the lunarchidna has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Web Walker. The lunarchidna ignores movement restrictions caused by webbing.

Spellcasting. The lunarchidna is a 4th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 11, +3 to hit with spell attacks). The lunarchidna has the following wizard spells prepared: Cantrips (at will): minor illusion, mage hand, poison spray, ray of frost 1st level (4 slots): detect magic, magic missile, shield 2nd level (3 slots): alter self, suggestion

Multiattack. The lunarchidna makes two attacks: one with its bite and one with its claws. If the lunarchidna hits a Medium or smaller target with both attacks on the same turn, the target is restrained by webbing and the lunarchidna uses Wrap Up.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3) necrotic damage. The target must succeed on a DC 13 Constitution saving throw or its hp maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hp maximum to 0.

Claw. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) slashing damage.

Web (Recharge 5-6). Ranged Weapon Attack: +5 to hit, ranged 30/60 ft., one creature. Hit: The target is restrained by webbing. As an action the restrained target can make a DC 13 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 10; hp 5; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).

Wrap Up. The lunarchidna wraps up a Medium or smaller creature restrained by webbing. The wrapped target is blinded, restrained, and unable to breathe, and it must succeed on a DC 13 Constitution saving throw at the start of each of the lunarchidna's turns or take 5 (1d4 + 3) bludgeoning damage. The webbing can be attacked and destroyed (AC 10; hp 15; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage). The lunarchidna can have only one creature wrapped at a time.