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
Clarity IClarity ISupport, Buff, Persistent Category: Clarity Tier: 1 Additional Reservation: 10 SpiritSupport Requirements: +5 IntSupports PersistentBuff Skills, causing you to gain increased Mana Regeneration while the Skill is active.30% Increased Mana Regeneration Rate while a Supported Skill is activePlace 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.
Vitality IVitality ISupport, Buff, Persistent Category: Vitality Tier: 1 Additional Reservation: 20 SpiritSupport Requirements: +5 StrSupports PersistentBuff Skills, causing you to gain Life Regeneration while the Skill is active.Regenerate 1% of maximum Life per second while a Supported Skill is activePlace 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
ElectrocuteElectrocuteSupport, Lightning Category: Electrocute Tier: 2Support Requirements: +5 DexSupports any Skill which can deal Damage. Lightning Damage from Supported Skills can inflict Electrocute, but Supported Skills cannot inflict Shock.Supported Skills Cannot inflict Shock Lightning Damage from Supported Skills Contributes to Electrocution BuildupPlace 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.
Living Lightning ILiving Lightning ISupportPlace 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
Cannibalism ICannibalism ISupport, Buff, Persistent Category: Cannibalism Tier: 3 Additional Reservation: 15 SpiritSupport Requirements: +5 StrSupports PersistentBuff Skills, causing you to recover Life on kill while the Skill is active.2% of maximum Life recovered on Kill while a Supported Skill is activePlace 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.
Warm BloodedWarm BloodedSupport, Buff, Persistent Category: Warm Blooded Tier: 3 Additional Reservation: 15 SpiritSupport Requirements: +5 DexSupports PersistentBuff Skills, causing Freeze applied to you to last for a shorter duration while the Supported Skill is active.50% less Freeze duration on you while a Supported Skill is activePlace 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
Living Lightning IILiving Lightning IISupportPlace 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.
Mysticism IIMysticism IISupport, Buff, Persistent Category: Mysticism Tier: 4 Additional Reservation: 30 SpiritSupport Requirements: +5 IntSupports PersistentBuff Skills, causing you to deal increased Spell Damage while on full Energy Shield while the Supported Skill is active.Deal 40% increased Spell Damage while on full Energy Shield while a Supported Skill is activePlace 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
Blind IIBlind IISupport Category: Blind Tier: 5 Cost & Reservation Multiplier: 110%Support Requirements: +5 DexSupports any skill that Hits enemies, causing them to Blind on Hit with increased effect.Supported Skills Blind Enemies on Hit Blind inflicted with 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.
Lightning MasteryLightning MasterySupport, Lightning Category: Mastery Tier: 5Support Requirements: +5 IntSupports Lightning skills, granting them an additional level. Does not support skills which do not have levels.+1 to Level of Supported Lightning 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.