
Luffy has yet to shown a definitive use of AdCoC outside of Wano. This is weird considering Luffy usually has no qualms about using his newly gained abilites the following arcs. Why has Luffy suddenly forgotten about the ability "Only a handful of the strongest" can use?
Personal headcanon: Oda will retcon adCoC to be an extremely haki taxing ability, making it deplete Luffy's haki pool at an accelerated rate.