He is the 2th known person in the in-game world for his unbelievable luck at winning games. Max has a partner with him but his role in the story is unclear. He has encountered Dark Unknown in the past, the backstory is still unclear.
Its believe that Max power is luck, everywhere he shows up he will gain advantage over something. His power of luck is still unclear but did win a match with Dark as a meteor hits him with no damage to him or Alex.