And it’s actually not based on powerscaling Kizaru or Shiryu.
Kizaru’s Vivre Card states that fighting him requires high level observation.
Shiryu also clearly requires high level observation to combat, since he’s literally invisible.
Zoro needs to have his observation haki boosted before he fights Mihawk. “Hawk-Eyes” Mihawk and his rival Shanks clearly have the very pinnacle of observation haki.
It doesn’t make sense for Zoro to have two fights where the power up is observation haki.
Kizaru’s Vivre Card states that fighting him requires high level observation.
Shiryu also clearly requires high level observation to combat, since he’s literally invisible.
Zoro needs to have his observation haki boosted before he fights Mihawk. “Hawk-Eyes” Mihawk and his rival Shanks clearly have the very pinnacle of observation haki.
It doesn’t make sense for Zoro to have two fights where the power up is observation haki.


