Eticore's Snaking Spear

A spear of magical force shoots forth guiding itself in a path of your choosing. Choose a point within range from which to start the path of your spear, you can then choose a route up to 60 feet long. You can shape it in any way you choose so long as it makes one continuous path. Each creature within that area must succeed on a dexterity saving throw or take
6d6 force damage, or half as much on a successful save.

When you cast this spell with a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.