You create a wildfire spread across the ground that you can see within range. Until the spell ends, the magic wildfire fills a 20-foot cube. Any creature in the wildfire's space when you cast the spell must succeed on a Dexterity saving throw or take 2d6 fire damage. A creature must also make the saving throw when it moves into the wildfire’s space for the first time on a turn or ends its turn there.

The wildfire ignites flammable objects in its area that aren’t being worn or carried.

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