Why the surprise that Imu recovered lol.
Let's just say, none of then knows how to counter it.
Big Mom mainly relies on DF.
Kaidou might be using some Azure dragon attack.
Whitebeard, Rocks, Garp and Roger are the only ones to use conqueror.
There's still a new level whether you like it or not.
It's simply,
Past armanent logic.
If your Conqueror is strong enough then you can damage imu, or else you can't.
Imu just a Logia at this point.
And what Akainu did in marienford against Marco and Vista.
They used Haki but Akainu was not damaged.
Logia awakening might actuslly be that.
You need to have stronger haki than them to destroy them.
Admirals upscale.