The Buster Sword is one of the rarest weapons that can be obtained by players.
Being the rarest, but also one of the weakest weapons, it has become a disappointment to many players who expected a strong event item. Although incredibly large, this piece of weaponry does a small amount of damage and is equal to that of the Iron Greatsword in all stats except rarity. This sword is a collectible item more than a combat sword.
The Buster Sword has been updated to drop from Ancient Dragon. Its stats have also been updated.
Rukiryo, the creator, gives everyone a Buster Sword in the servers where he plays- This sword closely resembles Cloud Strife's infamous Buster Sword from the video game franchise Final Fantasy.