pokemon tin box with cards TCG: Lumiose City Mini Display Future Pokémon ex Charge into Battle Pokémon TCG: 30th Celebration Mini

Packaging styles may vary

Active Volcano Active Volcano takes out a blue permanent, so Rhystic Study maybe

Cards are ordered according to their TCGplayer market prices, which are subject to change and volatility over time

Probably this visual test is the most conclusive

It recently jumped from $20 to $25, and I wouldnt be shocked if it keeps rising in value

On top of that, her activated ability for extra combat steps just wins games even if you don't plan on going infinite with shenanigans like Druids' Respository to attack, deal damage, and generate WUBRG with Repository to take infinite combat steps but you could totally do that too, of course