were the ones in which Fujitora and Sengoku were onboard? Jack is so OP that not even 2 Admiral level fighters can stop him! And then when he was about to take Doflamingo, he was attacked by the remaining 2 Battleship's and was forced to retreat because he was too weak due to the wounds which he got from Fuji/Sengoku. And then fell into the ocean and was "presumed dead" but was saved by plot because one can't just offpanel an island conquerer and an animal tamer.