Its ability allows you to speed up games significantly, but Solphim also has the least restrictive cost for becoming indestructible
Pandemonium is a bit of both, allowing you to deal damage each time Norin nopes out, but also allowing your opponents a chance to deal serious damage, making the game feel a lot more dangerous
Instead of drawing cards, you get a big dude, which is probably better, but you dont get to choose what to kill, which is a bit of a problem
Belle was also featured in The First Chapter as an Enchanted and Legendary card
Liliana, Dreadhorde General Welcome to Four Ability Lili
In Standard, if something breaks the game, itll get banned or Wizards might even wait it out until it rotates out of the game