Master Sword

The master sword, also known as The Blade of Evil's Bane, was a sacred weapon created by the sealing experts of the Uzumaki Clan. It was rarely seen used, as only those who could properly understand its sealing formula in conjunction to using the sword as a medium, were able to fully harness the blades entirety. Forged and crafted for the soul purpose of being able to seal away any evil force, grants the blade itself the ability to cut through bone itself, having been smelted with the finest grades of materials; having enough force to cut through steel weapons themselves. Only a select few have ever laid hands on the sword, as well as only a hand full of people; further more unlocking its true potential. Upon the downfall of the Uzushiogakure and the Uzumaki Clan as a whole the weapon was casted away in a sacred zone; the map locating such stashed away within their ancient storage. True to its name, the sword is often seen to choose or accept its master by its own will, always a hero who has gone through great trials that test his courage, wisdom and power to prove him worthy of wielding it.

The Uzumaki Clan's greatest secrets always were kept within their bloodline, the last one to hold the scroll of the whereabouts of the master sword was Pa. Having been killed, yet his treasures not robbed; Keitō Uzumaki was able to recover them as well as the scroll. Though lacking the knowledge to uncover the swords true potential he passed on the scroll of its locations to Takeo Hyūga.

History
The sword was sealed away in a dense forest, on an island not far from Uzushiogakure. Its known existence was to the Uzumaki Clan only, not even being listed as an island on the grand world map. Thus is where the Uzumaki have sent for the great sword to be sealed away. Only those with the true power to behold and unlock the master sword, were the worthy ones of finding said sword. Having to travel through a cavern and come out towards a valley of beautiful natural occurrences such as lakes, wildlife, and vast plant life the sword is imbued into a pedestal. Once removed from said pedestal a seal would activate and cause 4 dangerous and life threatening foes to spawn within the area. The current holder of the master sword must defeat each foe in order to leave the island with the sword, it being the final test for said being to truly pass as the Master Sword's next holder.

The sword was created by fearsome leaders within the Uzumaki Clan with the sealing prowess to be able to inscribe the sealing formula into the blade's material. Forging the blade for the soul purpose of banishing evil spirits from the realm. Only the true hero that is "pure of heart and strong of body" is capable of wielding the sacred blade, and as such, those with tainted hearts cannot even touch this powerful sword. Such is one of its properties; being able to seal and cast away a great evil spirit. Over years as time goes on and the hero's of said sword would pass on the sword itself would get passed down to family members, in hopes that their son would hold the power to protect their clan from all evils.

Design
The blade itself is forged out of various experimentation of metals, going through repeated processes and various sharpening methods to create a truly sacred blade. Its blades hone various layers of cuts to give it a more versatile cutting ability, granting it the ability to cut through most modern weapons and armors. The material itself shows to be very durable, as the sword itself has never been scratched or broken in its years of existence. It is designed to be a double-edged longsword with a purple ricasso and handle. Its crossguard retains a winged feature and holds a gem in its center. The blade itself once ready to face the forces of evil will glow a gold aura around it. Though hard to see unless one is in harms way of the blades, though various of intricate inscribed characters flow throughout the entirety of the blade. One cannot fully read said characters due to the blades reflective properties, though the characters are the components of a sealing formula inscribed into the blade itself. This is the essential power behind its sealing prowess. The gem within its center is required to be fed chakra for its true power to be shown.

Ability
In relation to the sealing formula inscribed onto the blade, the gem on its center acts as the power switch to activate the sealing power. Both sides of the blades have been inscribed with a Four Symbols Seal formula, combining both formulas to form the Eight Trigrams Seal, within the blade of the sword itself. Activating the gem within the blade will allow for the sealing formula to begin to activate, upon thrusting and piercing an extremely evil foe or spirit, the sword acts as the medium necessary for the instant sealing technique; sucking whatever evil force into the sealing formula itself upon the blade. The gem would then change color, from gold/yellow having a sense of purity to; crimson red, showing the sense of evil being locked away. Once doing such said evil spirit is casted away to its own proper holding zone; a land within the sealing formula. In such they must stay as accompanied by other forces sealed away. The land does not share characteristics as the shinobi world, as their soul is what is trapped within the formula, leaving their humane body to turn into stone; a marvelous statue of said banished soul.