Champion Stadium

The Champion Stadium is a new feature introduced on the first anniversary of Pokémon Masters EX. These battles have you face off against the Elite Four members of a specific Region before challenging the Champion.

This only unlocks after you have obtained all the badges in the story. After you have done a round, you'll be able to rematch but you won't be able to get new rewards

After completing the Challenge on Normal, you'll then be able to challenge it again on Hard. This has recommended Level 125 Sync Pairs for you to use and comes with a few differences

Each round you go through the Champion Stadium, there's a special parameter. This gives a different effect but isn't dependant on the trainer you face so you can pick and choose which Elite Four member to do in which order to better plan around the Special Paramaters. The Champion has their own set of Parameters. These range from increase of damage from special effects to lowering certain stats. These change each week.

In Hard, if you have lost a Pokémon during a successful battle, you're unable to use it in any subsequent battles until the reset at the start of the following week.