Emmeret's Chains of Fire

You point your finger towards a creature you can see within range. Their size can be no greater than large. The target must make a strength saving throw. On a failed save the target takes 6d8 fire damage and is restrained until the beginning of their next turn . On a successful save the target takes half damage and is not restrained.

Whether or not the target fails or succeeds, the chains persist. Until the spell ends, at the beginning of the targets turn, they must make a strength saving through. On a failed save they take 2d8 fire damage and are restrained until the beginning of their next turn. On a successful save they take no damage and are not restrained.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the initial damage increases by 1d8 for each slot level above 6th.