Crosier

Staff topped with iron rings.
Damage 14
Crit 6%
Hit -
Price 200 gil (160 gil on Easy)
Value 100 gil (80 gil on Easy)
Sold In Elfheim, Melmond
Found In Castle Cornelia

Equipped By

Why does the Crosier exist? It's a mystery! It's the same price as the Iron Nunchaku, but with 2 less Attack, so it's not intended for the Monk. (Though the Crosier does have a 1% better crit rate—but if crit rates actually worked the way they are intended the Iron Nunchaku's would be significantly higher.) Really the only reason I can see to ever buy this Weapon is if your Warrior is still using a Rapier, you're broke, and you don't care about Accuracy. But, uh, that seems unlikely.
Compare Crosier to other Weapons
Shops: Where Crosier is sold – 2 shown
Map Shop
Elfheim Weapons
Melmond Weapons
Treasures: Containing Crosier – 1 shown
Map
The specifics of where this treasure can be found
Notes
Castle Cornelia Found in a chest in the eastern treasure room
Dagger Saber

Related

Iron Staff

Sprite
Damage 14
Crit 6%
Hit -
Value 100 G

Equipped By

Sold In ElfLand, Melmond (200 G)
Found In Castle Coneria
It's not clear what purpose the Iron Staff holds. It costs as much as the superior Iron Nunchuck, and there are far better Weapons available to a FIGHTER. It does have a slightly better critical hit rate than the Iron Nunchuck, but it's not actually supposed to.