Staff of Lightnings (Arcane Item)

Bound Spell, Power Level 5. Contains a spell that, if not dispelled, generates a magic missile with a 24" range that causes D3+1 Strength 6 hits, and a single Strength 4 hit to the bearer. After every use roll a die. On a 1, the staff loses temporarily its powers and may not be used for the rest of the battle.