We don't know if this is going to be his new nickname.
It was Zoro's realization through the fight against king.
If this is what it takes, to not get beaten by anyone until i become the greatest swordsman and to keep my promise to you(Luffy)i will be the king of hell.
It was a powerful moment and to tell you the truth, i never liked the pirate hunter so a nickname with his dark theme inside is more than just welcome from me.
Sanji is calling his power with devil like names but that's somehow is fine but for zoro is cringe and for kid's?
You guys should put more respect to the rhm of the pirate king
..
Even if your guy is the left and obviously weaker and sloppier hand