This percentage shows your percentage as a player, that is, if you are in Mythic 85%, it means that you are ahead of 85% of players who are also in Mythic
On your mastery track, packs are added to your Set Mastery (separate from the gem buy-up Mastery Pass), to increase the prizes and rewards you can earn
Value : Opening packs is exciting and can potentially yield high-value cards
Once you attempt to enter the battle phase, they will most likely Revolt in response to make Shuraig and banish your normal summon
The 258-card set's top chase cards include the Gardevoir ex SIR and a surprisingly deep lineup of Illustration Rares Drowzee, Ralts, Kirlia, and Slowpoke that consistently outperform the Charizard ex and Miraidon ex SIRs in secondary market value