triumphant booster box HS & Platinum Base 3 Pokémon Pack Blister In addition Pokemon HS Triumphant Booster Box

Mega Gyarados ex can be obtained from Mega Rising: Mega Gyarados pack in the Mega Rising set

10, 2022, officials said

Promo Info BOOSTER ACROSS TIME [BT-12] CLOSECLOSE BT12-020 C Digimon Lv.3 Swimmon Color Blue Form Rookie Attribute Vaccine Type Tropical Fish DP 4000 Cost 3 Digivolve Cost 1 0 from Lv.2 Digivolve Cost 2 - Upper Text - Lower Text - Promo Info BOOSTER ACROSS TIME [BT-12] CLOSECLOSE BT12-021 C Digimon Lv.3 Veemon Color Blue Form Rookie Attribute Free Type Mini Dragon DP 1000 Cost 3 Digivolve Cost 1 0 from Lv.2 Digivolve Cost 2 0 from Lv.2 Upper Text [On Play] Reveal the top 3 cards of your deck

Getting him back doesnt have the most challenging requirement either Playing one copy of this effect is usually a good idea in Black decks in Limited, but thats even more the case in this format, since milling yourself and loading the graveyard in general is easier than normal, and there are more payoffs than normal for doing it too