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
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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
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.
III
Coming Soon
Coming Soon
IV
V
Item acquisition
Emergency Reload has restrictions on where or how it can drop.