Rubels, the Explorer/Rulings


 * Q: When I have Rubels, the Explorer in the battle zone, when I break an opponent's shield, can my opponent still use a Shield Trigger?
 * A: Yes, they can. The effect on Rubels, the Explorer states that when one of your creatures breaks an opponent's shield, they show you what it is before adding it to their hand. If it has a Shield Trigger, they can then normally activate it.