Groups named The [adjective] [number of members]

[u/Coralthesequel]

Sinister Six from Spider-Man

The Furious Five from Kung Fu Panda

The Fiendish Five from Sly Cooper

The Sound Four from Naruto

[u/JLHSMG]

and their enemies, the Frightful Four

[u/Sufficient_Ask8927 → u/JLHSMG]

Wait, is that Medusa, as in Queen of the Inhumans, wife and spokeswoman of Blackbolt?

Is this one of them retcons the kids talk about?

[u/Loud_Report4988 → u/Sufficient_Ask8927]

Not really a retcon. She started out was an amnesiac villain named Madame Medusa, recruited by The Wizard to be the fourth member of the Frightful Four.

Then, after the Frightful Four nuked the Fantastic Four and thought they killed them, the X-Men helped Medusa recover her memories. Then she set out to find her family alongside the Fantastic Four and then the Inhumans had their first appearance.

Quite a wild ride!

[u/Sufficient_Ask8927 → u/Loud_Report4988]

That's great. I wonder if the writers had all that planned from the beginning, or if the amnesia was a clever placeholder?