If less is more, these guys definitely have the most. Let's look at the real-life origins of Age of Sigmar's Fyreslayers.
The Mortal Realms are full of tough customers, from the disgustingly resilient followers of Nurgle to the massive warriors of the Sons of Behemat. However, it takes a special breed of grit to not only rush into battle clad in nothing but phenomenal facial hair and a bad attitude but also to hammer forge-hot gold runes into your body and barely flinch. That is exactly what the berserker warriors of the Fyreslayers do, and it's marked them out as one of the most iconic factions in the Realms. Of course, as with every other army, the angry gingers have their roots in several parts of the real world, and even though no warriors were hammering molten armor into their skeleton (that we know of) there were many warriors of old that bear a striking resemblance to the Sons of Grimnir.
Old World Origins - Slayers
The Fyreslayers themselves are not exactly a "new" faction, and their Warhammer roots stretch all the way back to fantasy. In the Old World, a dwarf that suffered a horrific loss or slighted their honor or the honor of their family in some way would sometimes devote themselves to a life of battle. Dying their hair bright orange to make themselves more intimidating and also easier targets on the battlefield, they would spend their every waking h...