History of Verity's Brow

Verity's Brow is an Exotic Warlock helmet. The Destiny Game Wiki lists it as introduced in Season 3.

Overview

Its perk The Fourth Magic: weapon final blows with a damage type matching your Subclass energy grant Death Throes (up to 3 stacks, 9 seconds each), boosting grenade damage and granting grenade energy. Throwing a grenade with stacks gives nearby allies faster grenade recharge for 5 seconds.

Acquisition

• Exotic engrams, as an extremely rare drop.
• Xûr, for 23 Legendary Shards (per the Destiny Game Wiki).
• The New Light Armor Requisition is also listed as a source.