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
Cold InfusionCold InfusionSupport, Attack, Cold Tier: 1Support Requirements: +5 IntSupports Attacks, causing them to GainCold Damage but deal less Fire and Lightning Damage.Supported AttacksGain 25% of Damage as extra Cold Damage Supported Attacks deal 50% less Fire and Lightning DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
EncumbranceEncumbranceSupport, Spell Tier: 1Support Requirements: +5 DexSupports any skill, causing inflicted Slows to be more powerful.Debuffs inflicted with Supported Skills have 15% increased Slow MagnitudePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
LeverageLeverageSupport Tier: 1Support Requirements: +5 DexSupports Skills which Hit Enemies. Supported Skills gain increased chance to Critically Hit against Immobilised Enemies.Supported Skills have 50% increased Critical Hit Chance against Immobilised EnemiesPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
II
LongshotLongshotSupport, Attack Tier: 2 Cost & Reservation Multiplier: 120%Support Requirements: +5 DexSupports Attacks, causing them to deal more damage from farther away.Supported Skills deal 30% more Attack Damage to enemies further than 7 metres from you, scaling down to no bonus at 3.5 metres or closerPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Primal ArmamentPrimal ArmamentSupport, Attack Tier: 2 Cost & Reservation Multiplier: 120%Support Requirements: +5 StrSupports Attacks that use a weapon, causing them to deal more weapon Elemental damage.Supported Skills deal 25% more Weapon Elemental DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
RicochetRicochetSupport, Projectile Tier: 2Support Requirements: +5 DexSupports any Skill which creates Projectiles, giving those Projectiles a chance to Chain when impacting terrain.Projectiles from Supported Skills have 40% chance to Chain an additional time from terrainPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
III
Biting FrostBiting FrostSupport, Cold, Payoff Tier: 3 Cost & Reservation Multiplier: 120%Support Requirements: +5 IntSupports any skill that Hits enemies, causing them to deal more damage to Frozen enemies but consume their Freeze. Cannot support skills that ConsumeFreeze.Supported Skills cannot cause Freeze buildup Supported Skills ConsumeFreeze on enemies to deal 50% more DamagePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Coming Soon
Elemental FocusElemental FocusSupport Tier: 3Support Requirements: +5 IntSupports any skill that Hits enemies, causing it to deal more Elemental Damage but be unable to inflict Elemental Ailments.Supported Skills deal 25% more Elemental Damage Supported Skills cannot inflict Elemental AilmentsPlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple copies of the same Support Gem socketed at the same time.
Item acquisition
Ice Shot has restrictions on where or how it can drop.