Elemental Hand

Your hand glows with a type of energy of your choice, acid, cold, fire, lightning, poison, or thunder. You can charge a one handed weapon that you can touch, with that type of energy. While charged, the weapon or object does an extra 1d8 damage of the type you chose. The charge lasts for one round. The weapon also becomes magical, if it isn’t already. You can choose to use your spellcasting modifier instead of strength when you roll to hit.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).