Hito Hito no Mi, Model: Vulcan

The Hito Hito no Mi, Model: Vulcan (''Human Human Fruit, Model: Vukcab') is a Mythical Zoan-type Devil Fruit which bestows upon its consumer the ability to turn into Briareus. It was eaten by Ignis D. Riku.

Advantages
The Human Human Fruit, Model: Vulcan bestows upon its consumer the ability to turn into Vulcan. Thus giving the consumer more strength, and speed. As well as the ability produce and manipulate fire and magma. The user also gains knowlege of how to build things.

Disadvantages
Besides the standard devil fruit weaknesses, no others are known.