Acquisition Drop restricted It can be obtained by engraving an Uncut Spirit Gem.Metadata Item class: Skill Gem Metadata ID: Metadata/Items/Gem/SkillGemSiphonElements
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 Tier: 1 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 Tier: 1 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
Harmonic Remnants IHarmonic Remnants ISupport, Remnant Tier: 2Support Requirements: +5 IntSupports Skills which create Remnants, allowing those Remnants to be collected from further away.Remnants created by Supported Skills can be collected from 100% further awayPlace 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.
Remnant Potency IRemnant Potency ISupport, Remnant Tier: 2Support Requirements: +5 StrSupports Skills which create Remnants, making those Remnants more powerful.Remnants spawned by Supported Skills have 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.
III
Harmonic Remnants IIHarmonic Remnants IISupport, Remnant Tier: 3Support Requirements: +5 IntSupports Skills which create Remnants, allowing those Remnants to be collected from further away, with a chance to create an additional Remnant.20% chance for Supported Skills to create an additional Remnant Remnants created by Supported Skills can be collected from 100% further awayPlace 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.
Remnant Potency IIRemnant Potency IISupport, Remnant Tier: 3Support Requirements: +5 StrSupports Skills which create Remnants, making those Remnants more powerful, but delaying their effect.Effects of Remnants generated by Supported Skills occur 4 seconds after being collected Remnants spawned by Supported Skills have 30% 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.
IV
Mysticism IIMysticism IISupport, Buff, Persistent Tier: 4 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.
Remnant Potency IIIRemnant Potency IIISupport, Remnant Tier: 4Support Requirements: +5 StrSupports Skills which create Remnants, making those Remnants more powerful, but delaying their effect.Effects of Remnants generated by Supported Skills occur 3 seconds after being collected Remnants spawned by Supported Skills have 40% 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.
V
Cold MasteryCold MasterySupport, Cold Tier: 5Support Requirements: +5 IntSupports Cold skills, granting them an additional level. Does not support skills which do not have levels.+1 to Level of Supported Cold 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.
Fire MasteryFire MasterySupport, Fire Tier: 5Support Requirements: +5 IntSupports Fire skills, granting them an additional level. Does not support skills which do not have levels.+1 to Level of Supported Fire 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.
Item acquisition
Siphon Elements has restrictions on where or how it can drop.