The deepwhisper's spellcasting ability is charisma (spell save DC 15). The deepwhisper can innately cast the following spells, requiring no material components: 1st level (4 slots): Thunderwave, Charm person 2nd level (3 slots) Misty step, Scorching Ray, Suggestion, gust of wind. 3rd level (3 slots) Blink, Clairvoyance, fear 4th level (3 slots) Banishment, Arcane eye 5th level (2 slots) Dominate person, Telekinesis 6th level (1 slot) Eyebite
Noncorporeal Movement: The deepwhisper can move through other objects and creatures as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.
Buffering Blast: Melee spell attack +8 to hit, reach 5 ft., one target. Hit 4d6+4 force damage.