Tumblethorns

A small whirlwind of thorns flows from your outstretched hand and travels in a winding, twisting path in any direction until it has traveled 30 feet total. Each creature whose space it passed through takes takes 2d10 slashing 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 increases by 1d10 for each slot level above 2nd.

Adapted from the AD&D 2nd edition book Prayers from the Faithful.