The Curse of Gretch

Any ranged weapon you touch while casting this spell will contain The Curse of Gretch for the next hour 

Upon successfully attacking with a weapon containing this curse, roll a d10, on a 5+ your roll becomes a natural 1 and the weapon breaks, taking an action to repair, otherwise it dies nothing

(note: this is made for an in-joke in a campaign I am currently in and is not at all balanced or intended for regular use)