I think the reason why Jinbe is coming is because he is supposed to beat Lucci and not Zoro.
Jinbe is a main power house of the crew and while the other 3 have been fighting someone notable, he hasnt.
He is a Warlord after all and he should beat someone notable.
I dont think Grim Reaper is Zoro's creation, I think it is a manifestation of death itself.
So, next time we see it, Zoro will be dying.
It should happen vs either Mihawk or Shiryu.
Still not because Lucci scenario doesnt fit even Oni Giri scenario because there are no CoC trails.
Also, it makes no sense for Zoro to use KOH during clashes, just like he didnt use it vs King when clashing.
It was only applied to named attacks because that's where it matters. Clashing is just testing the waters...
Also, we knew about the difference between Oni Giri and Dragon Damnation due to Dragon Style.
I disgree about this.
I think KOH can be used with 1/2/3/9 sword style.
Even without swords because it is just haki after all.