I see two things wrong with this picture now that I got some more info about Devil Fruits.
1. Robin is already a devil fruit user, it's been said if a devil fruit user eats another devil fruit their body will explode and die. I don't know how Blackbeard did it.
2. It's confirmed that no two devil fruit users with the exact same power can exist at the same exact time. However the fruit respawning if the original user dies is confirmed as seen with Whitebeard's death and Blackbeard (somehow) getting the powers of the Gura Gura no Mi.
1. Robin is already a devil fruit user, it's been said if a devil fruit user eats another devil fruit their body will explode and die. I don't know how Blackbeard did it.
2. It's confirmed that no two devil fruit users with the exact same power can exist at the same exact time. However the fruit respawning if the original user dies is confirmed as seen with Whitebeard's death and Blackbeard (somehow) getting the powers of the Gura Gura no Mi.
cute drawing! like it