Glass Explosion

You conjure exploding shards of glass on a point of your choice within range. Creatures within 15 feet of the point must succeed on a Dexterity saving throw or take 6d6 slashing damage, or half as much on a successful one. The ones that fail receive the Wounded condition (see below).

Wounded. Unless you take a short or long rest or are applied a Medicine check (DC 10) or receive magical healing, you are considered Wounded. While Wounded, you take an extra 1d6 damage whenever you take slashing damage and your speed is reduced by 5 feet.

At Higher Levels

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