I’m noticing a possible pattern to Luffy’s enemies.
Doflamingo - The focus was on him need the raw power amp or G4 to damage him
Katakuri - The focus was on him needing the speed amp of FS and Snakeman
Kaidou - The focus was on the raw power amp of ACoC and G5 to damagen him.
If this is the pattern the next enemy will challenge Luffy due to their speed, which Kizaru is the perfect fit for. Kizaru can also challenge Luffy in speed despite being weaker than Kaidou by avoiding Luffy’s blows. Luffy needing to develop a more speedy mode with G5 or Luffy needing to further develop his observation Haki seems like a good progression for him as well.
Doflamingo - The focus was on him need the raw power amp or G4 to damage him
Katakuri - The focus was on him needing the speed amp of FS and Snakeman
Kaidou - The focus was on the raw power amp of ACoC and G5 to damagen him.
If this is the pattern the next enemy will challenge Luffy due to their speed, which Kizaru is the perfect fit for. Kizaru can also challenge Luffy in speed despite being weaker than Kaidou by avoiding Luffy’s blows. Luffy needing to develop a more speedy mode with G5 or Luffy needing to further develop his observation Haki seems like a good progression for him as well.