Chromatic Shackle

Elemental Chains originate from the caster, binding the target.

Make a ranged spell attack, on a hit the target is grappled and restrained and takes 4d8 elemental damage (Fire/Ice/Lightning/Acid/Poison) chosen at spell cast.  As an action the creature can make a strength or dexterity ability check to break out.   Takes 4d8 of same elemental damage at the end of its turn untill it breaks out.

When cast above 4th level, each additional level adds 1d8 to the damage on hit and per round.