Tentacles

You tear a hole to the Far Realm from which emerges a 15 foot long tentacle in an unoccupied space. As a bonus action on your turn you may command the tentacle to perform one action. The tentacle may grapple a single creature, lift a creature or object weighing up to 50 lbs, or perform non-complex tasks such as opening a door. A tentacle may also make an attack against a single creature. Make a melee spell attack against the creature. If successful, the creature takes 1d4 bludgeoning damage. The rift closes and the tentacle disappears if the spell duration ends or if dispelled by the caster. To grapple a creature make a spell attack to attempt to grapple them. Creatures may attempt an Athletics or Acrobatics check to avoid the grapple as normal. A creature grappled this way may use an action on its turn to attempt to free itself.

At higher levels: You conjure an extra tentacle for each spell level above 1st in a different unoccupied space. All tentacles may be controlled with a singular command, and they must do the same action.