Weapon (arrow), uncommon
The shaft of a sand arrow is made of tightly packed white sand that discorporates into a blast of grit when it strikes a target. On a successful hit, the sand catches in the fittings and joints of metal armor, imposing a 10-foot penalty to speed on the wearer until the armor can be cleaned. Additionally, creatures hit by a sand arrow are blinded until the end of their next turn unless they succeed on a DC 11 Constitution saving throw.