Dont dismiss imperfect examplesscarcity can drive value, so consider buying raw cards you can grade if the price reflects condition
The cards available in volume 9 of Promo Series A are: Kartana Blacephelon Xurkitree Stakataka Dawn Wings Necrozma Dusk Mane Necrozma Ultra Necrozma ex Promo Series A Volume 10 You can earn one pack of Volume 10 every time you beat the Sweets Relay (Eevee Grove) advanced deck from the event battles list
It looks great but I needed a few different activities, so I purchased another product
They're still genuine Base Set, and high-grade copies of marquee cards like Charizard still command serious money, but they're a tier below Shadowless, which is several tiers below First Edition
The two below present two different ways to support this approach
It can gain counters each turn at least one faerie deals combat damage, and that can be an easy thing with all your flying faeries