The news of Zhang Yang "invasion" of Grandu Ice Ridge spread all around, which led to the retaliation of the Japanese and Korean players where they infiltrated Tibanya Wastelands to have their revenge. They only sent five players, however, all of them possess Inheritances. Although all of them were only C class Inheritance holders, all five of them had activated their Transformation skills. Their combined power was strong. An average C class Inheritance player could easily fight 10 players with no Inheritance. With five of them grouped together, that power would be multiplied. One of them was a healer, hence, their fighting endurance was made stronger and could take on a hundred non-inheritance players at a time.
This only happened due to the high resistance rate of status affecting skills. That, and the ridiculously high HP and Attack power of the Inheritance players, granting them an absolute advantage in the battle.