Luffy Mastered Observation Haki. He trained Armament haki by meditating improving his spiritual energy and manipulating its form. Plus Luffy also has been able to have better observation haki.
Plus Luffy also has been able to have better observation haki. He has way better durability. Id prefer Oda leave the god-tier observational haki to Sanji or Usopp.
Katakuri could see 5 seconds into the future because of his extraordinary mastery of Observation Haki.
He doesnt and shouldnt have to be the jack of all trades. He doesnt and shouldnt have to be the jack of all trades. What Episode Does Luffy Learn Haki. Sounds familiar no.