Ciliren's Dancing Swords

Utilizing concepts from multiple spells the caster magically draws 3 greatswords from their person and performs a small, ballerina like twirl, where the swords follow suit and spin outward from the caster, maiming any unlucky enough to be hit.  All creatures within the spells range must make a DEX saving throw or be hit for 10d8 magical slashing damage, or half as much on a save.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.