User blog comment:StrawHatDavid/Supernovas: What Role?/@comment-4754162-20130507031541

Kid controls magnetism. So assuming Kid allied to Strawhats in their quest to overthrow WG, during the final war, Kid will initiate a surprise attack on the WG + Marines by "pulling down" the whole Skypiea from the skies onto the ocean, from which the Skypiean - lead by Gan Fall - will launch assault on the enemy.