Electrical Charge

You cast an electrical charge around your body. If a creature touches you, they need to make a constitution saving throw or take 1d8 lightning damage and you lose the charge.
You can use a bonus action to use the charge to make a ranged spell attack. It does 1d6 lightning damage and upon an attack you lose the charge. (So, a miss also makes you lose the charge)

At Higher Levels. This spell’s damage increases by 1d8 or 1d6 when you reach 5th level (2d8/ 2d6), 11th level (3d8/ 3d6), and 17th level (4d8/4 d6).