All it takes for evil to triumph is for Ennui to convince good men to do nothing.
The leader of the Seven Brave inhabits this arrogant weapon.
The deadliest Sinblade, Wrathbringer is coveted by the violent and feared by all.
Want to avoid fighter types focusing on swords? Make Longswords and Bastardswords the weapon of the Noble class, with a death penalty for other to carry. These weapons will be ornate and finally crafted. Adventurers will be stuck with cheaply made broad and shortswords, while professional fighters might use two handed swords.