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
Module Error: No results found for item using search term "item_name = Inspiration"
LifetapLifetapSupport Category: Lifetap Tier: 2Support Requirements: +5 StrSupports any Skill, turning its Mana cost into a Life cost. Does not support Skills which reserve Spirit.Skill Mana Costs Converted to Life CostsPlace 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.
PremeditationPremeditationSupport Category: Premeditation Cost & Reservation Multiplier: 130%Support Requirements: +5 StrSupports skills that can Empower skills other than themselves, causing skills they Empower to deal more damage.Skills Empowered by Supported Skills deal 15% more 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.
II
Coming Soon
Coming Soon
Coming Soon
III
Coming Soon
Coming Soon
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.
IV
V
Item acquisition
Mana Tempest has restrictions on where or how it can drop.