Weave Blade

You gather nearby strands of the Weave together to form a blade in your hand This magic sword lasts until the spell ends. It counts as a simple melee weapon with which you are proficient. It deals 2d8 force damage on a hit and has the finesse and light properties. If this blade strikes a creature that has the spellcasting feature, then they lose one spell slot of the lowest level they have available.