team rocket 1st edition booster box sealed Opening A !!! HEAVY 1st Edition Team Rocket

In terms of special versions of cards, I dont think anythings going to top being able to get a grand for the foil Japanese alternate-art Liliana, Dreadhorde General as spotted on eBay, but I think Oko has a shot to be the new champion

5 Archfiends Ascent Archfiends In Space If any version of the Summoned Skull has a more diverse design, its Archfiends Ascent

Poxwalkers feels like an instant staple that has a great interaction with the ever popular Gravecrawler and a few other cards, so Im definitely expecting it to be an instant staple

Blue removal works quite well in Commander since the format often goes over the top of the pesky 2/2s and 3/3s your opponents get from these interactive spells