Blumberg Lupin

Blumberg Lupin, also known as "Arch Thief Prometheus", in the underworld, is the ruler of the island of Zaimera in the new world. He was a former pirate and is still an underworld emperor but always kept the personalities separate. No one in the world knows that Lupin and Prometheus are one in the same. He sailed as the captain of the Theif Pirates for some time, making a name for himself as the champion of the thieves guild in the underworld, the very place he secretly ran. After some time he made contact with the world government and offered his services as Shichibuki as well as a connection to the thieves guild. In exchange he was granted an absolved bounty and immunity as long as he served the world government.

Busoshoku Haki
Lupin is extremely skilled in the use of Bososhuko Haki. With this power he is able to create an invisible armor around himself. This armor can defend against seriously powerful attacks though with enough force or a more powerful haki user it can be broken. Lupin can also extend his haki to his weapons or his own devil fruit. This invisible armor gives him the ability to hit users of logia and some paramecia fruits. He can use this to hit their actual body, negating one of the huge advantages of a logia.
 * Busoshoku: Koka: Lupin is capable of using this technique to enhance his haki. With it he can harden various parts of his body, giving them a black coloring and severely increasing his strength and durability on those parts of him. He can also extend his haki to his weapon, giving it a black coloring and the ability to hit logia users.

Kenbunshoku Haki
Lupin is a skilled practitioner of Kenbunshoku Haki. With this power he is able to sense the world around him, particularly living things. With this power Wynn can sense people extremely far away from him and even see people concealed by objects. He does this by seeing their aura and using that to follow them. Lupin uses this power to scope out guards that are possibly concealed or out of his vision when robbing places. He is also capable predicting his enemies movements to a degree. Using this he can stay close in sword fights without the need to back off.

Trivia

 * His name in the underworld comes from the first thief, Prometheus, who stole fire from the gods in greek mythology.