Fatal Arrow of Fading Mana

Description

You can get it by completing the tasks of the Battle Master or buy it at Auction from the Squalid Armor.
A projectile that allows a foot soldier to make a shot from a magic bow.
Increases the standard damage dealt by the arcane bow, by 30%. With a probability of 33% hits the enemy with the Burning mana effect, which burns 16 mana units each round for 5 rounds.
You can use once every 6 rounds.