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
ExpanseExpanseSupport, AoE Category: Grants Cooldown Tier: 1 Cooldown Time: 8.00 sec Can Store 1 Use(s)Support Requirements: +5 IntSupports any Skill that you use yourself, granting it significantly higher Area of Effect but causing it to gain a long cooldown. Cannot support Skills which already have a cooldown.Supported Skills have 50% increased Area of Effect Supported Skills have a Cooldown of 8 secondsPlace 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.
Heightened CurseHeightened CurseSupport, Curse Category: Heightened Curse Tier: 1 Cost & Reservation Multiplier: 140%Support Requirements: +5 IntSupports Curse Skills, magnifying their power.Supported Curses have 25% increased MagnitudesPlace 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.
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II
Coming Soon
Focused CurseFocused CurseSupport, Curse Category: Focussed Curse Tier: 2 Cost & Reservation Multiplier: 120%Support Requirements: +5 IntSupports Curse skills, causing them to Curse enemies more quickly after being cast.Curse zones from Supported Skills erupt after 50% less delayPlace 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.
Ritualistic CurseRitualistic CurseSupport, Curse Category: Ritualistic Curse Tier: 3Support Requirements: +5 IntSupports Curse skills, causing them to cover a larger area but take longer to Curse enemies.Supported Skills have 50% increased Area of Effect Curse zones from Supported Skills erupt after 30% more delayPlace 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
Coming Soon
Cursed GroundCursed GroundSupport, Curse Category: Cursed Ground Tier: 3Support Requirements: +5 IntSupports Curse Skills. Supported Curse Skills create areas which Curse Enemies so long as they are within them.Supported Skills create Cursed Ground Enemies on the Cursed Ground from a Supported Skill are Cursed while within it Maximum 2 areas of Cursed GroundPlace 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.
Hex BloomHex BloomSupport, AoE, Curse Category: Hex Bloom Tier: 3 Cost & Reservation Multiplier: 120%Support Requirements: +5 IntSupports Curses, spreading their effects when a Cursed enemy dies.Curses from Supported Skills spread to enemies within 3 metres when a Cursed enemy diesPlace 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.