Additional Effects From 1-20% Quality: (1-20)% increased Cooldown Recovery RateSkills can be managed in the Skills Panel.
Acquisition Drop restricted It can be obtained by engraving an Uncut Skill Gem.Metadata Item class: Skill Gem Metadata ID: Metadata/Items/Gem/SkillGemOilGrenade
The following support gems are recommendations by GGG as listed in-game, and do not necessarily reflect optimal combinations or the views of the wiki.
Gem tier
Support gems
I
Magnified Area IMagnified Area ISupport, AoE Category: Increased Area of Effect Tier: 1 Cost & Reservation Multiplier: 130%Support Requirements: +5 IntSupports any skill with an area of effect, making it larger.Supported Skills have 35% increased Area of EffectPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Multishot IMultishot ISupport, Projectile Category: Additional Projectiles Tier: 1Support Requirements: +5 DexSupports Projectile skills, making them fire extra Projectiles. Also lowers Attack and Cast speed of supported skills, as well as lessening their damage.Supported Skills deal 35% less Damage Supported Skills fire 2 additional Projectiles Supported Skills have 20% less Skill SpeedPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Prolonged Duration IProlonged Duration ISupport, Duration Category: Prolonged Duration Tier: 1 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports any skill that has a duration, making that duration longer.Supported Skills have 30% more Skill Effect DurationPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
II
Persistent Ground IPersistent Ground ISupport Category: Persistent Ground Tier: 2Support Requirements: +5 StrSupports Skills which create Ground Surfaces, causing created Surfaces to last much longer.50% increased duration of Ground Surfaces created by Supported SkillsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Potent ExposurePotent ExposureSupport, Spell Category: Potent Exposure Tier: 2Support Requirements: +5 IntSupports Skills which apply Exposure to Enemies, increasing the effect of applied Exposure.Exposure applied by Supported Skills has 20% increased effectPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Short Fuse IShort Fuse ISupport Category: Short Fuse Tier: 2 Cost & Reservation Multiplier: 115%Support Requirements: +5 StrSupports Skills which Detonate after some amount of time has elapsed, shortening the time before Detonation.Supported Skills have 40% less Detonation TimePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
III
Cooldown Recovery ICooldown Recovery ISupport Category: Cooldown Recovery Tier: 3 Cost & Reservation Multiplier: 130%Support Requirements: +5 DexSupports skills with Cooldowns, increasing the rate at which those Cooldowns Recover. Cannot modify the skills of minions.Supported Skills have 25% increased cooldown recovery ratePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Magnified Area IIMagnified Area IISupport, AoE Category: Increased Area of Effect Tier: 3 Cost & Reservation Multiplier: 130%Support Requirements: +5 IntSupports any skill with an area of effect, making it larger at the cost of damage.Supported Skills have 45% increased Area of Effect Supported Skills deal 10% less Area DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Persistent Ground IIPersistent Ground IISupport Category: Persistent Ground Tier: 3Support Requirements: +5 StrSupports Skills which create Ground Surfaces, causing created Surfaces to last much longer and only end when their duration expires.50% increased duration of Ground Surfaces created by Supported Skills Ground Surfaces created by Supported Skills cannot be destroyed except by expiringPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
IV
Cooldown Recovery IICooldown Recovery IISupport Category: Cooldown Recovery Tier: 4 Cost & Reservation Multiplier: 130%Support Requirements: +5 DexSupports skills with Cooldowns, increasing the rate at which those Cooldowns Recover. Cannot modify the skills of minions.Supported Skills have 30% increased cooldown recovery ratePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Efficiency IIEfficiency IISupport Category: Efficiency Tier: 4Support Requirements: +5 StrSupports any skill, making it cost less to use. Cannot support skills which reserve Spirit.Supported Skills have 40% less CostPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Short Fuse IIShort Fuse IISupport Category: Short Fuse Tier: 4 Cost & Reservation Multiplier: 115%Support Requirements: +5 StrSupports Skills which Detonate after some amount of time has elapsed, massively shortening the time before Detonation at the cost of Damage.Supported Skills have 80% less Detonation Time Supported Skills deal 30% less DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
V
Persistent Ground IIIPersistent Ground IIISupport Category: Persistent Ground Tier: 5Support Requirements: +5 StrSupports Skills which create Ground Surfaces, causing created Surfaces to last much longer as well as lowering the Cooldown Recovery Speed of affected Enemies. Ground Surfaces from Supported Skills only end when their duration expires.50% increased duration of Ground Surfaces created by Supported Skills Ground Surfaces from Supported Skills apply Suppressive Ground Suppressive Ground inflicts 30% less Cooldown Recovery Rate Ground Surfaces created by Supported Skills cannot be destroyed except by expiringPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Rapid Attacks IIIRapid Attacks IIISupport, Attack Category: Rapid Attacks Tier: 5Support Requirements: +5 DexSupports Attacks, causing them to Attack faster at the cost of Damage.Supported Skills have 35% increased Attack Speed Supported Skills deal 50% less DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Second Wind IIISecond Wind IIISupport Category: Second Wind Tier: 5 Cost & Reservation Multiplier: 150%Support Requirements: +5 DexSupports skills with cooldowns, giving them extra uses of that cooldown and causing them to restore Life on use. Cannot support instant or triggered skills, or modify the skills of minions.Supported Skills have 40% less Cooldown Recovery Rate Restore 2% of maximum Life on use per one second cooldown of Supported Skills Supported Skills have twice as many Cooldown UsesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Item acquisition
Oil Grenade has restrictions on where or how it can drop.
Many Skills have had their base damage and/or damage growth per level rebalanced. Most of these changes are not specifically mentioned below as the changes are too widespread.
The mana cost for all Attacks, Marks and Warcries has been reduced, most notably at higher Gem levels.