Ignite

You cause up to two creatures or unattended non-magical flammable objects to catch on fire. Creatures may make Dexterity saving throws, and on a success suffer no ill effects.

A burning creature or object takes 1d6 fire damage at the start of its turn (unattended objects burn on initiative count 20). A burning object will deal 1d6 fire damage to a creature touching it if the creature ends its turn in contact with the burning object.

An affected creature may spend an action to attempt a Dexterity saving throw to put out the flames on itself or on one object. Otherwise, the fire continues to burn and may spread until it runs out of fuel.

Other effects and mundane conditions may extinguish the flames, such as being immersed in water, being in the area of Gust of Wind, or being in the area of rainfall from Create or Destroy Water. The flames are too strong to be extinguished by Druidcraft or Prestidigitation.