Draconic Burst

As an action you summon draconic energy into your weapon when while making an attack choosing: Acid, Cold, Fire, Lightning, or Poison. For 1 minute when the weapon used in the spell’s casting deals damage additional damage as follows. On a hit, the target suffers the weapon attack’s normal effects, and you can cause energy to leap from the target to a different creature of your choice that you can see within 5 feet of it. The second creature takes the chosen damage equal to your spellcasting ability modifier.

This spell’s damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 1d8 of the chosen damage to the target on a hit, and the damage to the second creature increases to 1d8 + your spellcasting ability modifier. Both damage rolls increase by 1d8 at 11th level (2d8 and 2d8) and 17th level (3d8 and 3d8).

If you roll an 8 on a d8 for this spell, you can roll another d8, and add it to the damage. When you cast this spell, the maximum number of these d8s you can add to the spell’s damage equals your spellcasting ability modifier.