It's an excellent multiplayer mechanic because it allows for creature decks to avoid kingmaking scenarios, or purposefully engage with them in order to play politics or create periods for player interaction
Karn, the Great Creator Loved and hated, Karn, the Great Creator does so much for 4 colorless mana
these dead heads are leading the horde
It also means that some effects are so bad, that they arent worth a card on their own
Still, there's a huge group of players who want high-quality proxies for their cubes or kitchen tables, and Wizards could fill this niche, rather than having some percentage of these players hand their money over to counterfeiters
However, players who arent familiar with D&Ds wider lore might not realise that there are also many existing characters within the Forgotten Realms of some fame or infamy