To buy the escaping team enough time, Luffy must hold off the unstoppable Magellan. Since touching Magellan directly means instant poisoning, steps up in a massive way:
This birth of finally allows Luffy to physically strike the Poison Warden without getting immediately infected! One Piece (Dub) Episode 449
An incredible display of tactical teamwork! Jinbe uses a massive wooden door as a raft to launch Crocodile, Buggy, and Mr. 1 out to sea to commandeer a battleship. 🕯️ The Highlight: Champion Luffy To buy the escaping team enough time, Luffy
At Luffy's request, Mr. 3 coats Luffy’s hands and feet in thick, protective wax armor. One Piece (Dub) Episode 449
Magellan has ordered the Marine ships to pull away from Impel Down, effectively stranding the escapees at the gates.