The One Ring is a threat to MTG 's game balance, and its power skirts dangerously close to that of other game-breaking artifacts that were eventually banned
The controversy surrounding Invoke Prejudice raised alarms about how Wizards vetted contributors, especially in the early years of Magic
Following it up with casting a Tauren Mauler or Predator Ooze turns it from a five-mana artifact that just gets immediately destroyed, to, effectively, a two-mana rock that can tap for a lot more
And, Resourceful Defense returns from the Streets of New Capenna Commander Decks, as does Damning Verdict, both of which are vital to any strategy involving counters (as the Bant deck in that set was also themed around)
Those being over twice as big as cube decks and less under pressure to be quick are more than happy running the most costly payoff cards too so this would still see loads of play even if it were just one opponent