Heart of the Praxic Fire

"In that last moment she seemed as wholly luminescent as the Sun, and I wished to be so brave."



Heart of the Praxic Fire is the holy grail of Sunsinger Exotics. It's the Gjallarhorn of Chest Armor. Its main talent, Praise the Sun, further decreases ability cooldowns during Radiance. At 100% Discipline, this reduces grenade cooldown from 2 seconds to 1.5 seconds; 100% Strength brings your melee cooldown from 7 seconds to 4.5 seconds. (more numbers from MalevolentFish) Have the talent Song of Flame equipped? Your allies' cooldowns will be faster as well thanks to HotPF.

  • Hand Cannon Ammo – Increased max Hand Cannon ammo
  • Void Burn Defense - Reduced Void Burn Damage
  • Praise the Sun – Further decreases all ability cooldowns while Radiance is active. Amazing.
    • Grenades: 1.5s (from 2s); Melees: 4.5s (from 7s)

SHOULD I BUY IT? Yes, without hesitation. This is an absolutely worthwhile purchase. The increased havoc you wreak is immensely satisfying. You'll be staring at the scorched earth in your wake, wondering how you ever lived without it. If you're a Warlock (especially a Sunbro), it's imperative you add this to your collection.

Where to get Heart of the Praxic Fire

Wrath of the Machine

This item is granted by playing the Rise of Iron raid, "Wrath of the Machine."

The Taken King

This item requires the Taken King expansion.

Xûr, Agent of the Nine

Xûr, Agent of the Nine, sometimes sells this item in the Tower.


This item can drop from Nightfall activities.

King's Fall

This item can drop in the King's Fall Raid.

Trials of Osiris

This item can drop as a Trials of Osiris reward.