Simply put, it's a matter of demand far outpacing supply, though tariffs definitely didn't help
Some of these can still be played in your MTG Arena decks, though several have also done time on an MTG banlist or two
If Blue, Loyal Raptor and Owen Grady, Raptor Trainer are your commanders, your deck may contain cards with green, blue, and/or red in their color identity, but not white or black
It wont be returned to the battlefield
Six mana is about on par with other extra combat cards, and getting two combats with creatures untapping is an objectively good effect
6 Raffine, Scheming Seer Helps From Afar As one of the best commanders from Streets of New Capenna, expect to see the Obscura leader to connive in numerous formats