I knew it'd give me a power, not which one though.

[Ace laughs, and nods, time for some story time!]

In my world there's these fruits that rarely appear called Devil Fruits, and each and every single one of them has a power. Now, when someone eats one of those fruits, they gain one power, and eating another won't do anything. Only one power per person! [He clears his throat.] Also, when that one power fruit's eaten, no one else can get the same power. So technically, I'm the only fire user alive!