You brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you. On a hit, the target suffers the weapon attack’s normal effects, and you can cause Yellow fire to leap to another enemy, within 5 feet, of them causing an extra 1d4 to the creature

This spell's damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).

The flame also gives off dim light in a radius of 20 feet while active.