Some Devil Fruit powers in One Piece overlap, with one version being strictly superior to the other in abilities and power.

The Glare-Glare Fruit eaten by Viola only has a few uses in battle, but its power is excellent for espionage purposes since it gives the user clairvoyant and telepathic abilities. The Bird-Bird ...

Being a newer, and heavily utilized system, at times Haki in One Piece can feel like it's overshadowing Devil Fruits.

By trading the ability to swim, a Devil Fruit user can ... These Devil Fruits include things like Akainu’s Magma-Magma Fruit. Finally, Paramecia Fruits is sort of like a catch-all for everything ...