Moonbeast (5e Creature)
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Large aberration (dreamlander), lawful evil
Magic Resistance. The moonbeast has advantage on saving throws against spells and other magical effects.
Multiattack. The moon beast makes three attacks with its tentacles.
Tentacles. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 14 (2d10 + 3) bludgeoning damage.
Mind Grasp. Ranged Spell Attack: +5 to hit, reach 30 ft., one target. Hit: 7 (1d10 + 2) psychic damage, and the must succeed on a DC 13 Intelligence saving throw or be paralysed until the end of its next turn.
Moon beasts are an alien species from the same place as the denizens of Leng. They resemble grey frogs with a blunt, vague snout and a bunch of tentacles for a head. They have no skeletons and are thus very flexible. Moon beasts have an affinity for the sea and are sailors and pirates. Many moon beast communities have enslaved denizens of Leng and let them work for them. Occasionally, these slaves are sacrificed to the dark gods the moon beast worship.