Other cards had price spikes driven by eternal play, including Lorien Revealed and Sauron's Ransom The Lord of the Rings: Tales of Middle Earth set is playable in MTG Arena's Historic format, and in eternal formats on Magic Online
As u/FalloutBoy5000 notes, its not outside the realm of possibility to have at least some of the power 9 in an Arena power cube. While the Power Nine would help power up the MTG Arena cube, they may be too powerful
To be clear for anyone who isnt familiar: Archenemy isnt a format with special deckbuilding rules
*Put Gandalf on top of its owner's library
Oblivion Ring Variants Oblivion Ring is a classic removal spell thats received countless iterations in Limited formats
Eldrazi Unbound Sliver Swarm Enduring Enchantments Planeswalker Party Prices of Commander Masters cards worth money Wizards of the Coast included multiple art and frame variants in the CMM set, with the cards worth money found specifically in collector booster packs