Uirodusios are disorderly and poorly protected naked Celtic spearmen who frighten enemies.
Expert at Hiding in Forests
The Uirodusios (Oo-row-doo-see-os; "Man-Demons") fight in the ancient Celtic style, stripped nude but for his torc, anklets, and bangles, and sometimes a cloak. Though poorly defended, and not nearly as skilled as the Gaesatae mercenaries of Gaul, nor on drugs, they are still formidable and present a frightening visage that unnerves enemies. These are not so much an elite as they are often only somewhat experienced warriors who wish to increase their fame by daring acts of bravery.
Historically, some Celtic warriors fought stripped nude. This had a few effects; it was unnerving to enemies, inspiring to friends, and also helped increase one's fame; an important matter in Celtic warrior society. The skill of such men would vary depending, logically, on how long they'd been fighting in such a way, but it would likely offer superior mobility compared to alternative methods of combat, allowing them to manuever more swiftly in a melee. Such warriors would stand out in the front of a line to encourage other soldiers and to be the first to engage the enemy.