They can show up to different events depending on their contract with the event organizer, their contract with Pokemon, their availability, and their interest
Im sure Im missing something that puts it all together as an engine, but for now Im satisfied binning my extra Champion of Dusk cards or Adanto, the First Fort tokens to close out a game
The original version can be more expensive than this one, so I hope you appreciate the Avatar special treatment
Each deck also has gorgeous artworks and cover designs that show off the unique setting of each of the generations
But when it works, the two for one blowout for just a single white mana is too insane to pass up
Subsequently, those prices vary depending on their condition and other factors