Stuck on Sapphira Gym Puzzle

[alaneapen]

I appear to be stuck on Sapphira's gym puzzle. I defeat the same  Pokémon over and over again, and when I defeat the knight who has the  Altaria, Mawile, and Garchomp, the treasure chest moves and plunges into the lava. What can I do to progress?

Game.rxdata

[Enatsyrte]

It's a Magneton which attracts the chest 

[alaneapen]

I have beaten Manidbuzz, Ambipom. Tyrantrtrum, Blaziken, Charizard, Magneton, and 3 knights with 2 different teams. How can I progress and battle the Zoroark, Druddigon, Aerodactyl and finally the Steelix? I am sttuck facing the same Pokemon so how can I actually advance. What do I have to do?

[Lord Drakyle]

1 hour ago, alaneapen said:

I have beaten Manidbuzz, Ambipom. Tyrantrtrum, Blaziken, Charizard, Magneton, and 3 knights with 2 different teams. How can I progress and battle the Zoroark, Druddigon, Aerodactyl and finally the Steelix? I am sttuck facing the same Pokemon so how can I actually advance. What do I have to do?

im pretty sure seeing some repition happens due to checkpoints in the progress but you basically have to just keep defending it until the steelix attacks which can feel like a while believe me

[alaneapen]

I have beaten the Zoroark that wanted to attack the chest. Then the chest will not respond and no more Pokémon are coming for the chest. Therefore, if anyone can help me., look into this new save file and see what is wrong. If you can complete the  challenge until the Steelix appears.

Game.rxdata