Crestcloud's Instant Blunderbuss

You rub a pinch of gunpowder along your arm and a long spectral blunderbuss manifests and fires a magical bullet. Make a ranged spell attack against the target. On a hit, the target takes 4d4 piercing damage immediately and 2d4 bludgeoning damage at the end of its next turn. On a miss, the bullet explodes near the target with fire for half as much of the initial damage and no damage at the end of its next turn. This damage is considered magical for the purpose of overcoming resistances.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage (both initial and later) increases by 1d4 for each slot level above 2nd.