Fittingly, for these kinds of mysterious creatures, little or no is known about firbolgs. They originated in Irish mythology as founding settlers and previously D&D editions were somewhat faithful to this, portraying firbolgs as powerful Celtic warriors. That is a far cry though, from the firbolgs of 5E. Warforged: Barbarians https://raymondfwmds.p2blogs.com/27315079/the-smart-trick-of-how-does-multiclassing-work-dnd-5e-that-nobody-is-discussing