Terrakion has arrived in the Legendary Arena in Pokémon Masters EX! You can complete designated missions to get exclusive medals!

Legendary Arena Terrakion

Legendary Arena Terrakion Available Now! Legendary Arena Terrakion is a brand new battle area that has just been added today! You can complete the related missions to earn Medals that can only be obtained here!

Legendary Arena

The Legendary Arena is a special battle area where you can form multiple teams and take on the challenge using a set number of sync pairs. You can complete the related missions to earn Medals that can only be obtained here!

Important

• To attempt Legendary Arena missions, you must have completed Main Story Chapter 2: Defeat Team Break! (Normal) in single-player.
• The time period and featured content are subject to change without notice.

Source: https://pokemonmasters-game.com/en-US/announcements/Event_5020_2W_5