You touch a weapon and wrap it in a clever illusion that creates phantom duplicates of the weapon during battle. Until the spell ends, attacks made with the weapon have advantage except against creatures who don't rely on sight, as with blindsight, or can see through illusions, as with truesight. Whenever a creature hits with an attack using the weapon, the spell no longer grants advantage for the rest of that turn.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the spell doesn't stop granting advantage when an attack hits.