Afterimage Strike

When you declare a one-handed melee weapon attack against a creature you may cast this spell. You must cast this spell before before the outcome of your attack is known. After your melee attack you may then make a melee spell attack against the target. On a hit, the afterimage does 1d6 psychic damage. You have advantage on the afterimage attack. However, if your initial melee attack misses, the afterimage attack automatically misses. At 5th level you may add your spellcasting ability modifier to the damage of this cantrip.