Blitz

The next time you take the Dash action on your turn before this spell ends, and move in one horizontal direction, you can tumble through other creature's spaces without difficulty. All creatures whose space you tumble through must make a Dexterity saving throw or take 3d6 lightning damage. Also, your movement is unaffected by difficult terrain, and the grappled condition by any effect that is not a magical effect from a spell slot higher than this one used.

The spell effect ends after you finish that dash action, if you lose concentration before you dash, or if you move in an additional direction while dashing.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for every spell slot above 2nd.