Increased Duration Support

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Increased Duration SupportSupport, Duration
Icon: D
Mana Multiplier: 140%
Requires Level 31Supports any skill with a duration.Per 1% Quality:
Supported Skills have 0.5% increased Skill Effect Duration
Supported Skills have (45-64)% increased Skill Effect DurationThis is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
Increased Duration Support inventory icon.png
Level: 31
Purchase Costs
Normal1x Orb of Chance
Sell Price
1x Scroll Fragment

Increased Duration is a support gem. It will increase the duration of any effects produced by the supported skill.

Skill Functions and Interactions

For example this gem will increase:

  • The lifetime of a totem created by a totem skill
  • The duration of the poison cloud produced by Caustic ArrowCaustic ArrowAttack, AoE, Duration, Chaos, Bow
    Radius: 20
    Mana Cost: (8 to 16)
    Cast Time: 1.00 sec
    Projectile Speed: 3260
    Requires Level 4Fires an arrow which deals additional chaos damage to enemies it hits, and creates a caustic cloud. Enemies in the cloud take chaos damage over time.Per 1% Quality:
    0.5% increased Area of Effect
    Base duration is (2.8-4.8) seconds
    Deals (5.3-765) Base Chaos Damage per second
    Gain (30-49)% of your Physical Damage as Extra Chaos Damage
    Modifiers to Projectile Damage apply to this Skill's Damage Over Time effect
    +(0-4) to radius
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Caustic Arrow skill icon.png
  • The length of time that a monster will remain converted by Conversion TrapConversion TrapTrap, Spell, Duration
    Mana Cost: (16 to 37)
    Can store 3 use(s)
    Cooldown Time: 8.00 sec
    Cast Time: 1.00 sec
    Requires Level 4Throws a trap that, when triggered by an enemy, converts that enemy to your side for a short duration. Does not affect unique monsters or players.Per 1% Quality:
    1% increased Skill Effect Duration
    Throws a Trap which uses this Skill when Triggered
    Trap lasts 8 seconds
    Base duration is (5.3-10) seconds
    Traps do not Trigger at the end of their Duration
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Conversion Trap skill icon.png
  • etc.

When linked to a remote skill or a skill that creates a minion, this gem will also increase the duration of skills used by the created minion or ally. For instance, if a Goatman Shaman in The Climb is raised as a spectre, the duration of the goatman's Molten ShellMolten ShellSpell, AoE, Duration, Fire
Radius: 15
Mana Cost: (8 to 28)
Cast Time: 0.50 sec
Critical Strike Chance: 5.00%
Damage Effectiveness: 200%
Requires Level 4Summons fiery elemental shields providing additional armour for a short duration. If cumulative physical damage prevented by your blocking or armour reaches a threshold, the shields explode outwards, dealing fire damage to surrounding enemies.Per 1% Quality:
1% chance to Ignite enemies
Deals (14-1962) to (20-2943) Fire Damage
Shields break after (26-1508) total Damage is prevented
(17-943) additional Armour
Base duration is 10 seconds
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Molten Shell skill icon.png
will be increased.

Ailments do not gain increased duration unless otherwise specified. Viper StrikeViper StrikeAttack, Duration, Melee, Chaos
Mana Cost: 5
Cast Time: 1.00 sec
Damage Effectiveness: (115% to 142%)
Hits the enemy, adding some of your physical damage as chaos damage and applying poison. Requires a claw, dagger or sword.Per 1% Quality:
0.5% increased Attack Speed
Deals (115-141.6)% of Base Damage
25% of Physical Damage Converted to Chaos Damage
60% chance to Poison on Hit
Base duration is 4 seconds
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Viper Strike skill icon.png
and PuncturePunctureAttack, Duration, Melee, Bow
Mana Cost: 6
Cast Time: 1.00 sec
Requires Level 4Punctures the target, causing a bleeding debuff, which will be affected by modifiers to skill duration. Puncture works with bows, daggers, claws or swords.Per 1% Quality:
1% increased Skill Effect Duration
Deals (100-122.8)% of Base Damage
Base duration is 8 seconds
Causes Bleeding
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Puncture skill icon.png
explicitly increase the duration of the ailment it applies.

This gem also does not increase the duration of Endurance, Frenzy, or Power Charges. These durations can be increased with passive skills and equipment.

For a list of skills that have a duration that can be affected, see Category:Duration skills.

Gem level progression

LevelLvl.strengthDurationExp.Total Exp.

Item acquisition

Quest reward

This skill is given as quest reward for the following quests:
Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
A Fixture of Fate
Act 3

Vendor reward

This skill can be bought at the listed npc vendors after completing the following quests:
Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
A Fixture of Fate
Act 3
Fallen from Grace
Act 6
Lilly Roth

Version history

Version Changes
  • Increased Duration: Mana multiplier reduced to 140% from 150%.
  • The Increased Duration support gem duration bonus has been reduced from 50-83% (depending on level) to 45-64%.
  • Its quality bonus has been halved.
  • Slightly increased the mana cost multiplier.
  • Increased Duration has been added to the game.