Aethereal Dagger

You utter a word of arcane power and flick your wrist, performing a hand gesture imitating the throw of a dagger. This produces a phantasmal dagger which is sent flying towards a target, which can be a creature or object, within range. Make a spell ranged attack. On a hit, the target takes 1D3+1 piercing damage. This damage counts as magical for the purpose of overcoming resistances. The dagger dissipates in violet mist 6 seconds after striking a target or if it moves outside the 15 ft range of the spell.

The spells damage increases by 1D3 when you reach 5th level (2D3+1), 11th level (3D3+1), and 17th level (4D3+1)