Let There Be Fire

There's fire spreading in many corners of Equestria and beyond, as the fires have minds of their own as they are actually caused by Lampads, or living beings of fire, under the recruitment of a new family member of the Storm King known as The Fire King, whose out to avenge his family by causing fiery chaos, and is actually doing that because he seeks something powerful. He seeks to find a legendary fruit so spicy, it makes the Devil Fruits of One Piece look like an inferior breed of fruit, and this will grant him unfathomable power over all of his opponents, allowing him to take revenge, and he holds back our heroes with his massive fires. Thus, the heroes must beat him to the fruit.