Duration Extender

Duration Extender
Cost		1,250
Tier		2
Increases the Duration of your abilities and items.
+14% Ability Duration
+8% Weapon Damage
+100 Bonus Health
+1.75 Health Regen
Upgrades To: Superior Duration
Internal name: upgrade_arcane_extension

Duration Extender is a Tier 2 Spirit Item which grants Bonus Health, Weapon Damage, Health Regen and increases the hero's Ability Duration.

It can be purchased from the Shop for  1,250.

Duration Extender is a component of Superior Duration.

Notes

• Ability duration affects your ability, item, buff, and debuff durations.

Update history

Main article: Update history

View the full update history: Duration Extender/Update history

Update	Changes
May 19, 2025	Imbued Ability Duration increased from +20% to +22
May 8, 2025	Cost increased from 1250 to 1600. Now an Imbue, no longer increases duration of all abilities. Ability Duration increased from +14% to +20%. No longer grants +100 Bonus Health. No longer grants +8% Weapon Damage. No longer grants +1.75 Health Regen.
October 24, 2024	Ability Duration reduced from 16% to 14%. Now grants +8% Weapon Damage.

Gallery

• 
  Warden casting Binding Word on Infernus - one with Duration Extender (left), one without (right).

Items

Weapon

 800

Close Quarters • Extended Magazine • Headshot Booster • High-Velocity Rounds • Monster Rounds • Rapid Rounds • Restorative Shot

 1600

Active Reload • Fleetfoot • Intensifying Magazine • Kinetic Dash • Long Range • Melee Charge • Mystic Shot • Opening Rounds • Recharging Rush • Slowing Bullets • Spirit Shredder Bullets • Split Shot • Stalker • Swift Striker • Titanic Magazine • Weakening Headshot

 3200

Alchemical Fire • Ballistic Enchantment • Berserker • Blood Tribute • Burst Fire • Cultist Sacrifice • Escalating Resilience • Express Shot • Headhunter • Heroic Aura • Hollow Point • Hunter's Aura • Point Blank • Shadow Weave • Sharpshooter • Spirit Rend • Tesla Bullets • Toxic Bullets • Weighted Shots

 6400

Armor Piercing Rounds • Capacitor • Crippling Headshot • Crushing Fists • Frenzy • Glass Cannon • Lucky Shot • Ricochet • Silencer • Spellslinger • Spiritual Overflow

Legendary

Haunting Shot • Infinite Rounds • Runed Gauntlets

Vitality

 800

Extra Health • Extra Regen • Extra Stamina • Grit • Healing Rite • Melee Lifesteal • Rebuttal • Sprint Boots

 1600

Battle Vest • Bullet Lifesteal • Debuff Reducer • Enchanter's Emblem • Enduring Speed • Guardian Ward • Healbane • Healing Booster • Reactive Barrier • Restorative Locket • Return Fire • Spirit Lifesteal • Spirit Shielding • Trophy Collector • Weapon Shielding

 3200

Bullet Resilience • Counterspell • Dispel Magic • Fortitude • Fury Trance • Healing Nova • Lifestrike • Majestic Leap • Metal Skin • Rescue Beam • Spirit Resilience • Stamina Mastery • Veil Walker • Warp Stone

 6400

Cheat Death • Colossus • Divine Barrier • Diviner's Kevlar • Healing Tempo • Indomitable • Infuser • Inhibitor • Juggernaut • Leech • Phantom Strike • Plated Armor • Siphon Bullets • Spellbreaker • Unstoppable • Vampiric Burst • Witchmail

Legendary

Celestial Blessing • Cloak of Opportunity • Electric Slippers • Eternal Gift • Nullification Burst • Seraphim Wings • Shadow Strike

Spirit

 800

Extra Charge • Extra Spirit • Golden Goose Egg • Mystic Burst • Mystic Expansion • Mystic Regeneration • Rusted Barrel • Spirit Strike

 1600

Arcane Surge • Bullet Resist Shredder • Cold Front • Compress Cooldown • Duration Extender • Improved Spirit • Mystic Slow • Mystic Vulnerability • Quicksilver Reload • Slowing Hex • Spirit Sap • Suppressor

 3200

Decay • Disarming Hex • Greater Expansion • Knockdown • Radiant Regeneration • Rapid Recharge • Silence Wave • Spirit Snatch • Superior Cooldown • Superior Duration • Surge of Power • Tankbuster • Torment Pulse

 6400

Arctic Blast • Boundless Spirit • Cursed Relic • Echo Shard • Escalating Exposure • Ethereal Shift • Focus Lens • Lightning Scroll • Magic Carpet • Mercurial Magnum • Mystic Reverb • Refresher • Scourge • Spirit Burn • Transcendent Cooldown • Vortex Web

Legendary

Frostbite Charm • Mystic Conduit • Mystical Piano • Omnicharge Signet • Prism Blast • Shrink Ray • Unstable Concoction