Arcane Sword

You create a sword-shaped plane of force that hovers within range. It lasts for the duration.

When the sword appears, you make 2 melee spell attacks against a target of your choice within 5 feet of the sword. On a hit, the target takes 3d12 force damage. Until the spell ends, you can use a bonus action on each of your turns to move the sword up to 60 feet to a spot you can see and repeat these attacks against the same targets or different ones. You have advantage on large or bigger creatures 

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 2d12 for each slot level above 7th.