Amulet of Cutting Missiles

Mages recognize the Amulet of Cutting Missiles by the
faint sparks that dance across its setting.
You can cast Magic Missile at its lowest level once per day
without expending a spell slot. Each of your Magic Missile
darts do +1 additional Force damage.

Source: Atma's Arsenal, Pg. 8

Notes: Damage: Force, Buff, Jewelry