@TheWillOfMarco Imu can only use weapons from the other 18 Kings because he is all of them in one body. Luffy isn’t fighting just one person but all the kings in one. Joyboy fought them when they were separately. And after the defeat of Joyboy they either
A. Joined together or Imu devoured them
@thundersup45418@zkimdracula Exactly! He also refers to luffy as Nika while possessing Gunko because Mu have relation going back to Nika while Imu only has connection going back to Joyboy who used the Nika fruit. The Imu on Elbaf is not the same as the Mu in the castle