Damn, another pleasant surprise. This Counterattack is a very good ability.
For example, Maril Grimm had used the Luck-Plundering Formation previously. If there had been such a Counterattack, Romo would not have had to intervene at all. With a Counterattack, not only would the other party not be able to plunder their family's luck, he would even be able to plunder the other party's luck automatically. This was simply a divine skill.
Romo was in a great mood. He continued to look at the next item. [High-grade Mysterious Treasure Chest: it may turn out to be any random item. The higher the grade of the item, the lower the chance of getting it.]
Damn, isn't this a bet on luck? Little Arthur should be the one to open it. After all, Little Arthur is Destiny's Child. If he were to open it, he would definitely be able to obtain the most powerful and best item.
Unfortunately, only Romo can open the items from the System.