User blog comment:NaruIchi24/Magellan...an Admiral!???/@comment-112.198.82.234-20120405015437

naahh..unless he learned haki, not just ordinary haki, but a powerful one..vice admirals uses haki, so in order to become admiral you got to have a powerful haki..

haki, not df powers, i think are prequisites in becoming an admiral..