A net of webs on fire fly to a creature, no bigger than Large, that you can see in range. The target take 4d6 Fire damage. The creature need to make a Dexterity saving throw or his speed is reduce to 0. At the beginning of the creature turn, it can try to remove the net with strength save. On a fail it take 2d6 fire damage.

The effects of the net ends when removed or after 6 rounds

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