A large red-hot chain 20 feet long and 3 feet wide lashes out from you and wraps around a creature. Each creature touching the chain must make a Dexterity saving throw. A creature takes 3d6 fire damage on a failed save, or half as much damage on a successful one. On the next round the chain persists, and the caster may move, rotating the beam from the target to the caster, Each creature in which the line goes over must make a Dexterity saving throw. A creature takes 2d6 damage on a failed save, or half as much damage on a successful one. 

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage for both rounds increases by 1d4 for each slot level above 2nd.