Burning Trap

You brandish the hunting trap or a bag of caltrops used in the spell’s casting and set it on the ground within 5 feet of you. The next creature that triggers the trap or walks on the caltrops suffers the normal effects of them, and then takes 1d4 fire damage on the start of each of its turns. The spell ends after 1 minute or when the creature is freed from your hunting trap or is healed from the caltrops wounds.