Not only does it do damage, but it also heals HP and can be used by a wide variety of classes. Discuss the awesomeness of a blood sword. I wish you could equip more than two. Wouldn't it be awesome to wear blood swords on your head?
With blood swords attached to your feet, you could do some bloody skiing. And if you accidentally collided with someone, you'd only get stronger!
Why stop there? Collect all the blood weapons!
Blood Dagger: Its like a blood sword! Except not! Blood Rod: ...You know what? Lets skip this one. Blood Gun: It shoots WHAT? Blood Axe: Its a bloody good axe! Blood Staff: Slightly better than rod. Blood Shield: We don't call him that to his face. Blood Bag: Malak only. Blood Dictionary: There's a secret if you look at the book REAL close... Blood Spear: Yeah, this is just about as bad as rod.
Warning. The above items don't actually exist. Except Malak, who is just a useless blood bag.
This space is dedicated to Final Fantasy Tactics, the truly Best. Game. Ever.