Board Thread:Questions and Answers/@comment-24098614-20160407112742/@comment-4911196-20160407130439

Tigre's Black Bow was a unique weapon but there are plenty of mysteries regarding of the Black Bow itself.

http://madan.wikia.com/wiki/Vorn_Black_Bow you can see it on that link about the Black Bow and current charged elemental arrow shot that Black Bow do to the enemies through Viralt.

Black Bow itself was a special amongst a special weapon so basically it was a special legendary weapon that was above the Vanadis weapons for the rate of Legendary Weapon.