Yagyu Darkblade The Yagyu Darkblade , also known as Yagyu Darkrood , is a recurring weapon in the series . It is usually the strongest katana or shuriken in the games it appears , or one of the strongest . Appearances . " Final Fantasy XII " . Yagyu Darkblade is the strongest ninja sword whose license is found in the top - left section of the weapon area of the License Board , along with other ninja swords , costing 80 LP . The weapon has an Attack power of 80 and a Combo rate of 22 % . Similar to other ninja swords , Yagyu Darkblade is Dark - elemental , and grants the user + 20 to Evasion . Ninja swords are among the fastest weapons with 1 . 97s charge and 1 . 2s action time ; only daggers are faster . Like the other most powerful weapons of each class , players can only acquire the Darkblade via one source : the Rare Game enemy Bombshell found in Lhusu Mines - Lasche Span . The Bombshell has a spawning rate of 20 % . Players may need to zone between Lasche Span ' s entry and exit or either Site 5 and Site 11 to make it appear . There are also two Aeronites , both yielding up to level 60 in the area , and can be tough to defeat . A popular tactic of chaining Bombshell is to lure it to one of the end of Lasche Span to the other , since the Aeronites will stop pursuing the party after a fixed point of the bridge . The player should set their gambits to " Foe : Water - weak→Attack " , as this will encourage the party to attack Bombshell only . Once this is done , the player should head towards either Site 5 or Site 11 , whichever is closer . Alternately , Aeronites can be killed by Poison ( which does not break the chain ) . If using this method , one can speed it up with additional gambits , such as " Foe : HP≧2000 : 1000 Needles " or " Foe : HP≧5000 : Attack " . Players need to zone twice to reset the area and re - spawn Bombshell , therefore , the most efficient way is to ride the mine cart in either area , which will count as two zones . Players are encouraged to turn off gambits so the party will not attack the stray Vampyrs . Once reaching the other side , the player can return to Lasche Span , and zone a few times . An alternate way to using the mine cart is to zone back from Site 11 to Site 9 , however , there is not a viable way to do this from Site 5 . The Yagyu Darkblade is a 3 / 6 / 8 / 12 % drop , so it may take a while , but the chances of multiple drops increases with each jump in chain level . In the " International " version , the Yagyu Darkblade can be found in a chest at the Great Crystal at Giruvegan . " Final Fantasy Tactics " . Yagyu Darkrood is a throwing weapon that has the attack power of 10 . They can be bought from outfitter s after The Horror of Riovanes at Riovanes Castle ( Chapter 4 ) for a 1000 gil . Etymology . It is said that the fifth generation successor , Yagyu Renyasai , established a style of sword specifications that became synonymous of the Yagyu Shinkage tradition . Regulations of sword fittings were matched of those to be followed by samurai under the command of the Tokugawa Shogunate . Fittings were to be black with subtle and modest designs . Yagyu - koshirae were said to bear shorter blades , and inserted " menuki " under handle areas where they would meet the palm for a tighter grip . Their " tsuba " hand - guards were said to have been designed with the oversight of Renyasai , who sought " tsuba " that did not waver under damage .