Katakuri's trident is so effective against Luffy, yet he throw it away
Luffy and Law swap's tactic is so effective against Doflamingo, yet it was done a single time
Hakai is so effective and cause Zoro near death, yet it was done a single time
Ceasar oxygen removal is so effective against everyone, yet he stopped using it
If the antagonist is persistent on effective fighting style, it will be most likely just for Luffy to copy it (Except Luffy vs Cracker)
At the same time, if you look at other mangas like Jujutsu, HxH, or any others, the character will persist on working strategy until the opponent figures thing out. This is definitely not the case for One Piece.
Which one do you like more? see poll.
Luffy and Law swap's tactic is so effective against Doflamingo, yet it was done a single time
Hakai is so effective and cause Zoro near death, yet it was done a single time
Ceasar oxygen removal is so effective against everyone, yet he stopped using it
If the antagonist is persistent on effective fighting style, it will be most likely just for Luffy to copy it (Except Luffy vs Cracker)
At the same time, if you look at other mangas like Jujutsu, HxH, or any others, the character will persist on working strategy until the opponent figures thing out. This is definitely not the case for One Piece.
Which one do you like more? see poll.