Can Luffy Use Full Body Haki. Ok we know haki is spirit and therefore we can probably make an assumption that when we see Luffy with a lot of spirit and resolve to fight he thus has at least a small amount of haki going. He can use all three types of Haki at advanced stages and has a decent amount of mastery over them.
Luffy had fatigue because of him putting 100 Shadows into his body where a human can only take 2. But here is the thing when luffy started using Gear fourth Snake man he was fast enough to hit katakuri before katakuri could react even though he could the future he still was too slow to react at that point you can clearly see luffy hit katakuri with armament haki. Ok we know haki is spirit and therefore we can probably make an assumption that when we see Luffy with a lot of spirit and resolve to fight he thus has at least a small amount of haki going.
But here is the thing when luffy started using Gear fourth Snake man he was fast enough to hit katakuri before katakuri could react even though he could the future he still was too slow to react at that point you can clearly see luffy hit katakuri with armament haki.
Luffy used Conquerors haki on 50000 fishman and didnt affect any of his crewHe has the control to only knock out kaidos underlings. Jun 3 2010. Edward Newgate aka Whitebeard. Sai also used it against Pica.