How does the tiering system work? Is is just raw power? does versatility matter? The type of opponents they beat?
I see Colossus, Namor, ShadowCat, She hulk in the same league as Mordo, Jean Grey, Spiral, etc..Didn't Mordo blow up a planet, regularly fight Strange,etc..Magic users will have way more versatility then Bricks.
Danger can reform from any physical damage, has cl 100 strength, can turn invisible, analyse weaknesses, turn a battlefield into her personal Danger room with her holograms. She has a ton of other powers as well.But she would be lower than someone like Herc or Black bolt?
Magik can travel anywhere in the omniverse, her powerset is as versatile as they come. Hellfire, transmutation, cloaking, illusions, magical blasts, demon summoning, soul, energy and time manip, etc..She has mystical senses which allow her to see through illusions, and sense people in other dimensions and galaxies, etc..Her demons give her an army of deadmen with all sorts of powers including power copying and shapeshifting.
In Limbo, she can out power most of the people in herald tiers. I could see a serious Magik talking on Hela and Circe type people who are above Herald Tiers. Hela herself has said Magik powers are impressive. Silver Surfer couldn't undo Limbo magic.
Magik's personal rouges gallery consists of demons like Sy'm, Belasco or dimension eating monsters like the World Eater and villains like Mephisto and Dormammu.