The unique affix makes Hungering Arrow always pierce (100% chance). Puncturing Arrow rune (and Buriza-Do Kyanon) will have no effect anymore. The arrow may potentially pierce again and again, even the same target, until it fails due to lack of targets (since it cannot retarget to an enemy more than 70 yards away) or by hitting a solid obstacle. It will also fail if the Demon Hunter moves too far from it.
As of patch 2.6.9, it also increases Hungering Arrow damage.
Stats (Level 31)Edit
The Ninth Cirri Satchel
"This satchel is cleverly designed so that the heads of arrows placed within fit into slots that serve as whetstones, sharpening the edges whenever an arrow is inserted or removed. Cirri's artistry remained unrecognized in his lifetime, so that only this quiver, numbered nine on the interior, survived to the present." —The Craft of War by Diadra the Scholar