Cut Object

You create a sword made out of arcane energy. It slashes at one thing you tell it to and disappears. It automatically hits it's target. If it is an object, it slices right through, unless said object is resistant to magic. If it is a creature, it deals 2d6 magical slashing damage. 

If you upcast this spell, it does an extra 1d6 magical slashing damage per higher level cast.