Moonweb

Alien Nature. Doesn't require air or sleep.

Transparent. Advantage on Dex (Stealth) checks while motionless or in dim light.

Multiattack. One Dissolving Bite attack and one Tendrils attack.

Dissolving Bite. Melee Weapon Attack: +7 to hit, 5 ft., one creature,. 13 (2d8+4) piercing damage + 9 (2d8) acid and the moonweb regains hp equal to the acid dealt.

Tendrils. Melee Weapon Attack: +7 to hit, 10 ft., one creature,. 11 (2d6+4) piercing damage and target paralyzed for 1 min (DC 14 Con not paralyzed). Target can re-save at end of each of its turns success ends effect on itself.

Etheric Pulse (Recharge 6). Releases burst of ethereal energy. Each creature within 30' of it: DC 14 Con save or become partially ethereal. A partially ethereal creature's attacks deal normal damage to the moonweb even if the attacks are nonmagical but all other creatures have resistance to the partially ethereal creature's nonmagical damage. Also moonweb can pinpoint location of partially ethereal creature and moonweb has advantage on attack rolls vs. it. A partially ethereal creature can re-save at end of each of its turns success ends effect on itself.

Ethereal Jaunt. Magically shifts from the Material Plane to the Ethereal Plane or vice versa.