Once I started playing Vintage competitively I realized I was wrong
Recent sets worth checking for AR hunting: SV10 Heat Wave Arena, SV9 Battle Partners, and M4 Mega Symphonia
Some stores give you a reward every time you spend X amount of dollars, but this, of course, will vary from location to location
There are also some exceptions: The promo Pikachu card that you can get in the Premium shop does not require any duplicates in order to get flair for it
When you flicker a mutated creature, all the mutated creatures are exiled together and return separately
GX Tag Force 2: Slifer the Sky Dragon (Effect Monster), Power Wall, Dark Magician (Anniversary Edition), Dark Magician Girl (Anniversary Edition), and Ashoka Pillar