One Piece Episode 691 -

Cavendish warns that Doflamingo's "Birdcage" is a trap meant to ensure no survivors, prompting the fighters to realize that taking Doflamingo's head is the only way to escape. Key Character Appearances

Dellinger (who defeats Blue Gilly in this episode), Gladius, and Machvise. One Piece Episode 691

Monkey D. Luffy, Trafalgar Law, Cavendish, Kin'emon, Kanjuro, Kyros, and various Colosseum fighters like Sai, Ideo, and Hajrudin. Cavendish warns that Doflamingo's "Birdcage" is a trap