homebrew by Team Brievary
Innate Spellcasting. The baku's innate spellcasting ability is Charisma (save DC 19, +11 to hit with spell attacks). The baku can innately cast the following spells, requiring no material components:
Dream Beast. The baku is immune to spells that would cause it to fall asleep, and does not experience the need to sleep. Dream Claws. A baku’s claws are magic for purposes of overcoming damage resistance. Dream Sight. The baku can see 60 ft. into the Dreamscape (Realm of Dreams) when it is on the Material Plane, and vice versa.
Multiattack. The baku makes 2 claw attacks. Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (3d4+2) slashing damage plus 5 2d4 psychic damage Dream Eating. A baku can feed upon the dreams of any single sleeping creature within 100 feet. Alternatively, the baku can feed upon the dreams of a creature that it manages to contact with the dream spell. A creature can resist this effect with a DC 22 Wisdom save. When a baku feeds in this way, it can elect to consume only nightmares or all dreams. If it only consumes nightmares, the target creature is immune to the effects of the nightmare haunting ability of the night hag, and other similar attacks for that period of sleep. If the baku instead feeds on all of the creature’s dreams, that creature is fatigued upon waking and does not gain any benefits it would have received from sleep. Dreamwalker. The baku enters the dreamscape from the Material Plane, or vice versa.