Cnamh

Introduction
Cnamh is a Legendary-Grade North-Blue shashka, forged by renowned North Blue blacksmith Goibniu Broin. It's blade is made of a compound of titanium, stainless steel, and tungsten, making it one of the most durable blades in the world, alongside it's brother sword, Feoil. It has an ivory and silver hilt, and is battle-worn, showing scorch marks and tiny chips here and there, but never rust. It was used by legendary North Blue Cossack Commander Andrei Shkuro, and has somehow found it's way into Viktor's hands as a trophy from Alexander LaCroux, alongside Feoil.

Appearance
Despite being Legendary-grade, Cnamh appears as only a worn North Blue shashka with a unique hilt. However, in battle, it emits an ethereal aura, oozing power and experience, and reports claim that wielding this sword will often lead to them hearing a voice from within the blade.

Abilities and Powers
Cnamh is one of Viktor's close-range options and primary weapons against swordsmen.
 * Legendary-Grade (O Wazamono grade) Sword: Being a Legendary-Grade sword, Cnamh is far above the rest in terms of combat power and durability. It is a step down from Supreme Grade named blades, but is still formidable in it's own right.
 * Battle Experience: Having been in so many battles, Cnamh has built up a knowledge, or 'experience', in battle, and whoever weilds Cnamh will find their swordsmanship enhanced and combat instincts temporarily embedded into themselves.
 * Spirit of Steel: Cnamh possesses a Spirit of Steel, a sentience that comes from both having been made physical for an extremely long number of years, and having been in so many battles that an 'experience' in combat builds up. The Spirit of Steel manifests as a voice coming from within the blade, advising the wielder on what moves to use best, and how to improve their skills.
 * Super Durability: Being made from a compound materials of the strongest metals at the time, Cnamh is extremely durable, and will likely never break.

History
Crafted long, long before the Age of Pirates, Cnamh was created by blacksmith Goibniu Broin as a gift for Andrei Shkuro, the current Cossack Commander at the time, as a commission. Cnamh passed through an unknown amount of users, before finding it's way into Alexander LaCroux's hands. By then, the Spirit of Steel had long since formed, giving Cnamh awareness of the world.

Initially approving of LaCroux, Cnamh's opinion on the Marine commodore soon changed when LaCroux went mad with power. Acting as a factor to LaCroux's downfall, Cnamh provided lies and false steps to give Viktor the upper hand. After Viktor's defeat, Cnamh was taken as a trophy, along with Feoil, and so Viktor would have a close range option in a fight besides his martial arts.

Though Cnamh is technically being used for evil, due to it's wielder being a pirate, it is used to liberate oppressed islands and force back corrupt Marines, so I think it's safe to say it's being used for good.