Monkey D. Luffy’s path to mastering Haki in ‘One Piece’ is a big deal for anyone following his wild adventure. As the Straw Hat captain, he’s had to level up his skills to take on tougher ...

Defeat Whitebeard - One of two Raid Bosses in A Universal Time. He has 75,000 HP, with a bonus of 25,000 HP per player, and spawns every 3 hours globally. He is one of the toughest bosses in the game.