Details: One of the ten possible challengers you will face as you sit on the Champion's Chair in the Champion's Hall after defeating the Elite Four is the Former Trial Captain Molayne. He has comes to challenge the Pokemon League to see how good Kukui built it. He still specializes in Steel Type Pokemon.
Challenger Molayne - Level 61 Skarmory, Level 61 Sandslash, Level 61 Magnezone, Level 61 Metagross, Level 61 Dugtrio