Both of these extended-art cards and the Commander slot above are treatments that can only be found in the Collector Booster
Attack-in-the-Box (DSK-242) - Duskmourn: House of Horror Foil Attack-in-the-Box (DSK-242) - Duskmourn: House of Horror Foil Wizards of the Coast LEGAL Standard LEGAL Future LEGAL Historic LEGAL Timeless LEGAL Gladiator LEGAL Pioneer LEGAL Explorer LEGAL Modern LEGAL Legacy NOT LEGAL Pauper LEGAL Vintage LEGAL Penny LEGAL Commander LEGAL Oathbreaker LEGAL Standardbrawl LEGAL Brawl LEGAL Alchemy NOT LEGAL Pauper Commander LEGAL Duel NOT LEGAL Oldschool NOT LEGAL Premodern NOT LEGAL Predh Whenever Attack-in-the-Box attacks, you may have it get +4/+0 until end of turn
Staraptor (Crimson Blaze) is not available in Rare Packs
Whats even better is that you can subvert the neutral card advantage (sorry Magic , Yu-Gi-Oh
Finally, her -11 threatening to steal almost everything can represent a massive game-ending challenge for your opponents to overcome
Some top-earners in the world of Twitch, YouTube, and the like were definitely factors in driving up the prices of unboxed original decks and/or driving viewers to seek them out, no matter the cost