The Special Sync Pair Event: Petey & Pikachu is now live in Pokémon Masters EX! Complete the event to team up with Petey (Poké Kid) & Pikachu! You can raise their potential and move level with rewards from the item exchange!

Special Sync Pair Event Petey & Pikachu

Watch the event’s story and team up with Petey (Poké Kid) & Pikachu! Special Sync Pair Event Petey & Pikachu under way! You can team up with Petey (Poké Kid) & Pikachu in this event. In the Exchange Items menu for this event, you can exchange rewards to raise the potential and move level of Petey (Poké Kid) & Pikachu.

Rewards

You can exchange the vouchers you earn during the event for items in the Exchange Items menu for this event. The rewards include Petey (Poké Kid) & Pikachu’s Custom ★ Power-Ups, Petey (Poké Kid) & Pikachu’s Sync Orbs, and more!

Important

• To participate, you must have completed Main Story Chapter 1: The More the Merrier (Normal) in single-player.
• The sync pairs that appear as opponents in battle have different capabilities than those you can actually obtain.
• To unlock the sync grid, you must have completed Main Story Chapter 1: The More the Merrier (Normal) in single-player.
• When the exchange period for the following items obtained in this event ends, the leftover items will be converted into coins (10 coins each) and sent to your Present Box.
  
  Applicable Items:
  • Event Voucher H
• The time period and featured content are subject to change without notice.

Source: https://pokemonmasters-game.com/en-US/announcements/Event_6010_1W_3