Classes & Ascendancies

Gemling Legionnaire

Gemling Legionnaire is an Ascendancy class for the Mercenary.

3 min read·Updated 2026-07-11·Editor score 89/100
Gemling Legionnaire screenshot 1
Editor's TakeMedium89/100

Our editors rank Gemling Legionnaire for league-start viability, passive synergy, and how forgiving it feels when you mis-spec early.

Best for: Anyone picking a main or planning a league start

⚡ Pro Tips

  • Respec points are limited early; plan your first 20 passives before committing.
  • Melee ascendancies level safer; casters scale harder but need positioning discipline.

✓ Quick Checklist

  • Review the core gemling legionnaire mechanics in this guide
  • Check requirements for your current character level
  • Apply one upgrade before your next boss or map push
  • Explore related guides in the same category

Gemling Legionnaire is an Ascendancy class for the Mercenary.

Overview

The Gemling Legionnaire is embedded with the true potential of virtue gems, unlocking new powers. Many of the Gemling Legionnaire's passives grant highly variable bonuses depending on the type of gems socketed, such as Gem Studded granting a bonus based on most numerous support gem color, Integrated Efficiency and Thaumaturgical Infusion gaining more power as you socket more support gems, and Essence of Virtue granting a defensive barrier that gets stronger based on total socketed skill gems. He can also directly enhance his skill gems with extra levels or even unlock new quality bonuses with Advanced Thaumaturgy. The Gemling Legionnaire also lends well to builds that stack a large amount of attributes.

Passive skills

Minor skills

This class has the following minor passive skills:

NameStats
Attributes3% increased Attributes
Reduced Attribute RequirementsEquipment and Skill Gems have 4% reduced Attribute Requirements
Skill Gem Quality+2% to Quality of all Skills

Notable skills

This class has the following notable passive skills:

SkillModifiersPrerequisitePreceding Passive
Essence of VirtueGrants Skill: Virtuous BarrierSkill Gem Quality
Implanted GemsBolstering Implants+2 to Level of all Skills with a Strength requirementEssence of VirtueSkill Gem Quality
Motoric Implants+2 to Level of all Skills with a Dexterity requirement
Neurological Implants+2 to Level of all Skills with an Intelligence requirement
Advanced ThaumaturgyGem Quality grants Socketed Skills an additional effectEssence of VirtueSkill Gem Quality
Gem StuddedFor each colour of Socketed Support Gem that is most numerous, gain:•Red: Hits against you have no Critical Damage Bonus•Blue: Skills have 30% less cost•Green: 40% less Movement Speed Penalty from using Skills while MovingReduced Attribute Requirements
Integrated EfficiencySkills deal 20% increased Damage per Connected Red Support GemSkills have 6% increased Skill Speed per Connected Green Support GemSkills have 20% increased Critical Hit Chance per Connected Blue Support GemGem StuddedReduced Attribute Requirements
Thaumaturgical Infusion+1% to Maximum Fire Resistance per 3 Red Support Gems Socketed+1% to Maximum Lightning Resistance per 3 Green Support Gems Socketed+1% to Maximum Cold Resistance per 3 Blue Support Gems SocketedGem StuddedReduced Attribute Requirements
Adaptive CapabilityAttribute Requirements of Gems can be satisified by your highest AttributeAttributes
Enhanced EffectivenessInherent bonuses gained from Attributes are doubled20% less AttributesAdaptive CapabilityAttributes
VersionChanges
0.5.0The Crystalline Potential Notable Passive Skill has been removed. Added a new notable Passive Skill, Essence of Virtue. This grants the Virtuous Barrier Skill which, while active, conjures a glittering barrier that accumulates protective ge
0.4.0Thaumaturgical Infusion now grants: +1% to Maximum Cold Resistance per 3 Blue Support Gems Socketed (previously 4). +1% to Maximum Fire Resistance per 3 Red Support Gems Socketed (previously 4). +1% to Maximum Lightning Resistance per 3 Gre
0.3.0cThe Gemling Legionnaire's Integrated Efficiency Passive Skill now actually applies by modifying each skill, which means those modifications also apply to minions from those skills. The description has been updated to clarify that the bonuse
0.3.0The Advanced Thaumaturgy Notable Passive Skill no longer grants 30% less cost of Skill, or Skill Gems have 30% more Attribute requirements. It now grants the Thaumaturgical Dynamism Buff, which while active causes you to passively generate
0.2.0The Integrated Efficiency Ascendancy Passive Skill has swapped positions with Gem Studded. The Implanted Gems Ascendancy Passive Skill no longer provides +1 to level of all Skills. Instead, it now provides a choice between +2 to level of al
0.1.0Introduced to the game.

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