Monkey D. Luffy has some wild transformations in One Piece, but no official appearances could be really considered "dark" until this reveal.

Kanishma Ray is a writer at GameRant, who's known to play a mean violin (decently, that is). She's a Computer Science student by day and a wordsmith by night, with a knack for crafting engaging and ...

Undoubtedly, this new form of Luffy was simply immense in terms of aura, and fans would've certainly have latched onto it.