Void Lurker

Tentacle. Melee Weapon Attack: +7 to hit, reach 15 ft., one target. Hit: 14 (2d8 + 4) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Wisdom saving throw or be paralyzed until the end of its next turn.

Soul Drain (Recharge 5-6). The Void Lurker targets one paralyzed creature it can see within 30 feet of it. The target must make a DC 16 Wisdom saving throw, taking 27 (6d8) psychic damage on a failed save, or half as much damage on a successful one. The Void Lurker regains hit points equal to the psychic damage dealt.

The Void Lurker is a nightmarish entity that seems to be stitched together from the darkest fears of sentient beings. Its form is a shifting, pulsating mass of eyes, mouths, and tentacles, all appearing to be made of a substance that absorbs light. The eyes are a haunting shade of luminescent blue, and they seem to pierce the very soul. The mouths emit a constant, low-frequency hum that unsettles the mind and distorts perception. When it moves, it appears to phase in and out of reality, as if it's partially existing in another plane.

The Void Lurker is a cunning and malevolent creature that revels in the fear and suffering of its prey. It often uses its innate spellcasting abilities to paralyze or instill fear in its enemies before closing in for the kill. Its tentacles not only deal devastating physical damage but also have the power to paralyze, setting up victims for its horrifying Soul Drain ability.