Fretstrike | +6 2D6+2

Harmonic Resonance: Once per short or long rest, when Arion lands a critical hit with the guitar sword, the target and all creatures within 10 feet
must pass a DC 13 Constitution saving throw or be deafened until the end of Arion's next turn.

Winged Guard (Feather Fall): The guitar sword's winged handguard is enchanted. When Arion falls while holding the sword, he can cast slowing his descent and preventing fall damage.