Core Eruption

Flames erupt from your fists in a 1 foot cube, and on you next turn you may take those flames and fire it at someone for 8d6 physic damage. If the fireball hits a player or monster, the player or monster must make a dexterity saving throw of AC 12. On a succeeding throw, they take only 3d8 physic damage. On a failed throw, they take the full 6d8 damage.