Arcane Strike

You brandish the weapon used in the spell’s casting and make a melee spell attack with it against one creature or object within the weapon’s reach. The weapon becomes magical, if it isn't already. On a hit, the target suffers the weapon attack’s normal effects and a number of force damage equal to your spellcasting ability modifier, and the spell ends.

This spell’s damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 1d8 force damage to the target on a hit. The bonus damage increase by 1d8 at 11th level (2d8) and again at 17th level (3d8).