Sure, theyre harder to get hold of outside of Japan, so you may not see as many of them, but as with any other language of Pokmon card, theyre still broken down into different levels of rarity
Deckbuilding is what precludes me from participating in most Magic Arena formats, since they all require playing with decks youve built yourself
Goblin Blast-Runner doesn't need to have been on the battlefield at the time the permanent was sacrificed in order to get the bonus
I think most often youre dropping it as the Parlor, and then when you want to close the game, you unlock the Secret Arcade, which will buff your All that Glitters, Ancestral Mask et al
The "Caw-Blade" deck was putting up insane results before the card existed, so it's hard to blame it for the imbalance
This show fits every collector profile first-timers, families, casual fans, modern flippers, prospect hunters, vintage diggers, Pokmon players, and serious toy collectors