Astral Chains

You summon ethereal chains from the Ethereal Plane to bind your foes and disrupt their movement. Choose up to three creatures within range. Each target must make a Dexterity saving throw against your spell save DC, becoming Restrained by glowing, spectral chains upon failing the save.

While Restrained by these chains, a creature takes 4d8 psychic damage at the start of each of its turns. Additionally, any teleportation effects attempted by the Restrained creature automatically fail unless the spell ends or the creature successfully breaks free (Other creatures may still teleport them).

On each of its turns, the target can make a Strength (Athletics) check as an action against your spell save DC, ending the effect on itself on a success.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you can target one additional creature and deal an additional 2d8 damage for every two levels above 5th.