Shield of Boiled Leather

Should this shield be able to snatch away cursed weapons? If that's the case, is there any defense against the shield's ability, short of iron grip (assuming that works)? Thoric narrows his eyes and glares in your direction. You scream in agony as plague sores erupt from your skin. Thoric's divine power misses you. You parry Thoric's divine power. Your weapon sticks to Thoric's shield! A shield made of boiled leather snatches your weapon away! Thoric deflects your punch with his shield. Thoric deflects your punch with his shield. You writhe in agony from the plague. Your sickness grazes you. Thoric has a few scratches.