I shouldnt be surprised you dont stick around for 26 years without a solid foundation, after all but hearing my niece say how cute Yamper is, or ask if she can play with Eevee next, drove the point home for me
Cards playable at launch: Sword & Shield: Everything released Sun & Moon: Lost Thunder, Team Up, Detective Pikachu, Unbroken Bonds, Unified Minds, Hidden Fates, Cosmic Eclipse Card not playable at launch, but still transferrable: Sun & Moon: Base Set, Guardians Rising, Burning Shadows, Shining Legends, Crimson Invasion, Ultra Prism, Forbidden Light, Celestial Storm, Dragon Majesty XY: Everything Released Black & White: Everything Released Accessories: Many coins, card sleeves, and deck boxes are transferrable, with a maximum of one copy per item
Furthermore, if it was a Dark monster you happened to banish, you can then banish every single copy of it from your opponents hand, deck, and graveyard
Id get a poster of that Xatu in a heartbeat
Wugtrio ex takes 20 additional damage from Lightning-type attacks
The full card list can be seen below