Derhund's Glimmering Blade

You summon a translucent, shining shortsword in your hand that lasts until the spell ends. During the duration, you can use a bonus action to dismiss or summon this shortsword into your hand, and it automatically dismisses itself when you let go of it. It counts as a simple melee weapon with which you are proficient. It deals 1d6+1 force damage on a hit and has the finesse and light properties.

You can, on the other hand, use your spellcasting ability modifier in place of your dexterity or strength modifier when determining attack and damage rolls for attacks made with this weapon.

At Higher Levels. When you cast this spell using a 3rd or 4th spell slot the bonus to damage increases to +2 rather than a +1. When you cast this spell using a 5th or 6th level spell slot or higher, the bonus to damage increases to +3. When you cast this spell using a 7th level or higher spell slot, the bonus to damage increases to +4 and you have a +2 to attack rolls made with this weapon.