He advances the Great Age of Piracy, the boss 'Red Hair'!
One of the Four Emperors who rule the New World. Formerly an apprentice with the Roger Pirates, he went on to compete ruthlessly with Hawk-Eyes and came to stand on equal terms with Whitebeard. 'Red Hair' has become the subject of countless legends, but contrary to his fame, he is the pirate that most embodies freedom. If being Pirate King means being the freest man on the seas, then perhaps it could be said that Shanks is the closest to the throne.
Gryphon
A long-held, cherished blade. It has the strength to stop a magma fist and the elegance of a gryphon.
Depending on how Shanks feels, he can start a party anywhere!
Whether someone was a rival or a compatriot doesn't matter. He will pay respect when respect should be paid.