Pokémon Masters EX has brought back Victor & Spectrier through a returning Special Sync Pair Event running from Aug. 20 at 11 p.m. PT through Sept. 29 at 10:59 p.m. PT, giving players another opportunity to team up with the Ghost-type duo and earn event rewards. Alongside the event, a limited-time Marvelous Mega Run-Up to 7: 5★-Select EX Fair-Exclusive Scout is available through Aug. 27 at 10:59 p.m. PT, allowing players who use the ×25 Sync Pair Scout to select an additional 5★ Sync Pair from the scout’s available pool, which includes EX Fair-exclusive Sync Pairs.
Source: Official Pokémon Masters EX site
Nintendo & Pokémon Blog 