Muted Foe

1st-level abjuration
Casting time: 1 bonus action
Range: Touch
Target:
Components: V, S
Duration: 1 minute
Classes: Artificer, Cleric, Sorcerer, Warlock, Wizard
Subclasses:

You touch a nonmagical weapon. The next time a creature hits with the affected weapon before the spell ends, the weapon booms with a thunderous peal as the weapon strikes. The attack deals an extra 1d6 thunder damage to the target, and the target becomes deafened, immune to thunder damage, and unable to cast spells with verbal components for 1 minute. At the end of each of its turns, the target can make a Wisdom saving throw. On a success, the effect ends.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the extra damage increases by 1d6 for each slot level above 1st.