Retarted bro, like they want to tell me this is a air slash:
I mean even if you make the argument that Gaban used his two axes, what is in the middle then?
Imu is not blocking a air slash, he literally block a lighting bolt haki version.
Divine Gate is clearly a haki adv coc attack we never seen before, it fits to the category of critical mass and Wifi haki.
At worst Gaban is injuried, old and even said himself how weak he became.
Oda is clever, he didn´t want to show more of that haki, but he teased it here, show us a glimps how Shanks fights with haki(it fits to his Wifi haki where he throw his haki at Aramaki).
Imu depends Omen and two legendary weapons, got hurt by Gaban haki lightning bolt which tells enough how crazy high the AP of that attack is.
As example Zoro KoH was blocked by a fucking TAIL...
Luffy Genie G5 punch was blocked by one hand(one Basic CoC punch of G5 had Kaido screaming on ground)...
Gaban AP is crazy strong.
His haki lighting attack cut of branches who are bigger than mountains...
Gaban show in a single panel what I wished to see in Wano from Kaido vs Oden: