Tindangle monsters in your Main Monster Zone cannot be destroyed by battle or your opponent s card effects. Once per turn, if your Tindangle monster inflicts battle damage to your opponent, the damage becomes doubled. You can banish this card from your GY and discard 1 Tindangle card; add 1 Nagel s Protection from your Deck to your hand. You can only use this effect of Nagel s Protection once per turn.