MX-8054 Durability Random box with a 100% guarantee after 300 boxes!

Conditions to guarantee a MX-8054 (Durability).

1.Player must open at least 300 random boxes. (In case of the player doesn't receive MX-8054 (Durability) yet.)

2.The system will record the player information referred from the player who completing the purchase since Wednesday to Tuesday of each week.

3.The system will send a MX-8054 (Durability) to the inventory for the player who get the guarantee in every server maintenance day.