Chapter 1001

Chapter 1001 is titled "Battle of Monsters on Onigashima".

Cover Page
Jinbe resting luxuriously on a jellyfish bed.

Short Summary
The fight between the five Supernovas and the Emperor duo of Kaido and Big Mom begins in earnest, with Luffy managing to withstand Kaido's Raimei Hakke strike and Zoro using Kitsunebi-ryu to cut Prometheus in half. After Zoro and Killer launch a combined attack against Kaido, Luffy, Law, and Kid follow up with powerful simultaneous attacks of their own to drive the Emperor to the ground. Afterwards, Kaido transforms back into his dragon form and takes to the air to face the Supernovas alongside Big Mom on Zeus.

Chapter Notes

 * Luffy, Zoro, Kid, Killer, and Law begin fighting Kaido and Big Mom in full force.
 * Luffy is confirmed to have injured Kaido with advanced Busoshoku Haki.
 * Zoro displays the ability to cut fire like Kin'emon.
 * Zoro recognizes Killer as "Kamazo" because of his laughter.
 * Killer's scythe weapons are revealed to be called "Punishers".
 * Kaido decrees that whoever wins this fight will be much closer to becoming Pirate King.