Avalon

Avalon is a legendary sword, apart of the 7 swords of Heaven. It is one of the majority of the swords that once belonged to the Celestial Dragons at one point in time, until a Holy Knight was awarded it during the 7 Holy Swordsmen Arc.

Appearance
Avalon is an average length broadsword with an abnormal handle and weight. It's lighter than the average broadsword. The handle is black with a weird platinum coated top that resembles a fang.

Abilities
Since Avalon is a holy sword, only those worthy can wield it, if not it becomes too heavy to wield. If it does however find a user it believes is worthy it reveals it power.

Avalon is a normal sword upon first sight, that doesn't show it's power as easily as the others. It actually learns as the battle goes on, eventually managing to copy its opponents power and multiply it.

Strengths and Weaknesses
The blade is unbreakable, being able to cut through everything. Unlike the other holy swords, it doesn't drain the user to wield this blade unless the battle calls for the sword to unlocks it's own potential.