But, even with unlimited stamina, Luffy cannot possibly think that Gear 5 is enough for him to beat the top tiers of the One ...

Seiryu could transform Zoro's strength, swordsmanship, and battle dynamics, making him unstoppable in One Piece.

One move Kaido used against Gear 5 Luffy during their final showdown was ... the end of the world), tying it to the Elbaph Island's theme. Plus, the 'three worlds' also paralleling the 'three ...

Speculation on Luffy's next transformation includes flames engulfing his hair, blending themes from Gear Five ... one of Hanuman's aliases, to defeat Kaido, the strongest beast in One Piece.

One Piece's Wano Arc doesn't hold back in showing us the reality of being a pirate, especially when Kaido's ruthlessness ...

He has some strong similarities to Kaido, so he may be a hybrid from the Giant race. This is coupled with the fact that he has an attack named Ragnarok, which fits with the Nordic theme of Elbaph ...