"One Piece" Hawkins has immortality. How did he get killed?

In One Piece, Hawkins not only has the ability of divination, but also can create a body body double to resist his own harm after eating the devil's fruit, which is equivalent to having the power of immortality. In the plot, Sauron cut off his head with a knife, but he still stood there, seemingly not afraid at all. Although Hawking has such an open-minded ability, Bian Xiao thinks it is not impossible to kill him.

One is to fight a protracted war, which consumes twice the body. Although Sauron's knife is fast in battle, he can't hurt Hawkins. There is a premise that Hawkins has a lot of body double in his body, which can help him resist until the end of the battle. From the plot, we can know that Hawkins only has ten body double at most, so if he spends his body double after a long battle, Hawkins will have no body double to help him stop the injury, so it will be easy to beat him. Of course, this method also has a disadvantage, that is, long-term consumption will also increase your own consumption, so you must replenish your energy in time, so that you can save enough strength to defeat Hawkins after you have consumed your body.

The second is to find someone with superior strength. In the plot, after Hawkins met Kprusoian, it was not long before his body was consumed by Kprusoian, so if the other side was strong enough, Hawkins' body body double was useless, even if it could resist the injury, it would only be a matter of a few seconds. If the opponent can raise his strength to the level of Kprusoian, it will be very easy to defeat and kill Hawkins.

The third is the man who killed Hawkins. In One Piece, Hawkins' ability to eat grass lives in his men's bodies, and his men are weak, so if we can avoid Hawkins and kill all his men directly, the devil's fruit will be useless, and Hawkins can't use his body body double to resist harm to himself. Hawkins, who has only one life, will be well solved.