The caster snaps their fingers, and a sharp, black tentacle jolts out of the ground or body of the caster, quickly moving towards a creature of the caster's choosing. Make a ranged spell attack against the target. On a hit, the target takes 1d12 force damage.
The spell can create more tentacles at higher levels: 2 at 5th level, 3 at 11th level and 4 at 17th level. You can target different targets for each tentacle, or the same. Make a separate attack roll for each tentacle.
The spell can also be cast as a means of intimidation, sprouting the tentacles out of the body, and allowing them to linger instead of attacking. Make an intimidation check to effectively cast the spell. On a roll of 10, gain advantage on future intimidation for 15 minutes. On a roll of 15 or higher, advantage on intimidation lasts for 30 minutes instead. At 10th level and higher, rolling 10 gives advantage for 30 minutes, and 15 or higher gives advantage for 1 hour.