One Piece I Am Dragon King

My name is Hals, and I have traveled to the world of One Piece.
This is of course the name after crossing.
I got a system that gave me an Eudemons Devil Fruit, I can turn into a dragon, have a strong physique, and cast many kinds of magic.
I can also absorb other people's negative emotions and buy interesting things in the system's store.
So, for the sake of negativity, I started doing things.
"Blackbeard, have you heard of it?"
"Puffing Smoker's cigarette, walking in the steps of Brother Ming, wearing the smile of Kizaru, and then saying something in the tone of red-haired and white-bearded, give me a face and be my son."
"There will be red-haired arms, Fujitora's eyes, Aokiji's legs, and your teeth."
Blackbeard looked aggrieved: "So what does this have to do with you pulling my teeth?"
"Negative emotions from Blackbeard +100000"