Duration Extender

Spirit ·Tier 2 · Imbue

1600

What it does

Imbue an ability to increase its Duration.

Passive

Imbue — attach it to one of your abilities to empower it.

22%

Ability duration

When to buy & tricks

Duration Extender bolts onto a single ability and stretches how long its effect lingers, so a long stun, a summon, a damage field or a self-buff sticks around noticeably longer. Slot it on heroes whose value lives in uptime — crowd control, zoning ults and persistent buffs — and skip it on point-and-click burst abilities where extra duration does nothing.

Built by

Best with Bebop ~56.7%

Bebop 45.3% ~56.7

Haze 39.5% ~55.2

Billy 31.5% ~54.3

Dynamo 21.9% ~49.5

Drifter 19.1% ~50.5

Sinclair 8.6% ~51.3

build share · win rate when built

Performance

~50.9% Win rate

35.3% Build rate

+0.5 vs last patch

11' avg buy

Win rate by rank

Ini

See

Alc

Arc

Rit

Ete

Upgrade path

This item

Duration Extender1600

Upgrades into

Superior Duration3200

Related mechanics

Builds & the build browser Hero levels & ability points Imbues Shop tiers, investments & components Active vs passive items

Built-by, win rate, build rate and top hero are sample until the match API is wired in. Effect, cost, value and the build tree are real client data.

Raw dataproperties, shop fields & API

identity

id: upgrade_arcane_extension
slug: duration-extender
token: upgrade_arcane_extension
kind: upgrade
updatedAt: 2026-06-06T16:23:38.392Z

shop

category: spirit
tier: 2
cost: 1600
groupLabel: Duration
filters: —
componentIds: —
upgradeIds: upgrade_imbued_duration_extender

properties (1)

label	key	value
Ability duration	`BonusAbilityDurationPercent`	22%

Upgrades

lvl	AP	upgrades
1	1	Ability duration +12

GET/api/v1/items/duration-extender.jsonthis item GET/api/v1/items.jsonall items