Tentacles of the Kraken

Outstretching from the caster's hand, squirming, ebony tentacles erupt out and seek any creature within a 90 ft line.

Make a ranged spell attack against the creature, upon a hit, the creature takes 4d6 bludgeoning damage and must succeed on a strength saving throw or become restrained. If the creature ends their turn while restrained, they take 1d6 bludgeoning damage.

A creature restrained by the tentacles can use its action to make a Strength or Dexterity check (its choice) against your spell save DC. On a success, it frees itself.

When cast a higher level, this spell can attack one additional creature for every spell level above 4.