Best Harlowe (Gravitar) Build and Leveling Guide
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This is a build guide for Harlowe the Gravitar with great AoE Damage and Support potential in Borderlands 4. See the best build, skills, weapons, guns, and gear to use for Harlowe, along with a leveling guide and character playstyle here!
| All Harlowe Guides | |
|---|---|
| Leveling Build | UVHM Build |
| Harlowe Cosmetics | Harlowe Skill Trees |
Best Harlowe (Gravitar) Build
| Jump to a Section! | |||||
|---|---|---|---|---|---|
| Skill Tree | Skill Progression | Weapons | |||
Harlowe Best Skill Tree and Action Skill
| Skill Tree |  Cosmic Brilliance |
|---|---|
| Action Skill: Flux Generator | |
For the best Harlowe build, the Cosmic Brilliance skill tree with the Flux Generator is a great choice, as it deals AoE damage and applies status effects to enemies caught in its radius, while also shielding, healing, and buffing allies who stay inside. When used at the right time, the Flux Generator can easily turn the tides of battle, be it with regular mobs or with badasses.
Harlowe Best Skills
| Jump to a Skill Type! | ||
|---|---|---|
| Passives | Augments | Capstone |
Best Passive Skills
| Skill Tree | Priority Skills | ||
|---|---|---|---|
| Cosmic Brilliance (Green Tree) |
 Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
 Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
 Mass Function Harlowe and her allies gain increased Reload Speed for every Entangled enemy.
 Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
 Resonance Cascade Whenever Harlowe deals Radiation Damage to an enemy, she gains increased Action Skill Damage. This effect can stack.
 Confirmative Reality Whenever Harlowe shoots an Entangled enemy, she and all allies restore a portion of their Action Skill Cooldown.
 Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
 Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
 Runaway Reaction Harlowe gains increased Status Effect Chance. Whenever Harlowe applies a Status Effect to an enemy, it becomes Entangled.
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| Creative Bursts (Red Tree) |
 Fuzzy Math Harlowe gains increased Status Effect Chance.
 Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
 Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
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| Recommended Skill Progression | |||
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Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
Lvl 2 |
Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
Lvl 3 |
Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
Lvl 4 |
Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
Lvl 5 |
|
Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
Lvl 6 |
Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
Lvl 7 |
Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
Lvl 8 |
Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
Lvl 9 |
|
Mass Function Harlowe and her allies gain increased Reload Speed for every Entangled enemy.
Lvl 10 |
Mass Function Harlowe and her allies gain increased Reload Speed for every Entangled enemy.
Lvl 11 |
Confirmative Reality Whenever Harlowe shoots an Entangled enemy, she and all allies restore a portion of their Action Skill Cooldown.
Lvl 12 |
Confirmative Reality Whenever Harlowe shoots an Entangled enemy, she and all allies restore a portion of their Action Skill Cooldown.
Lvl 13 |
|
Confirmative Reality Whenever Harlowe shoots an Entangled enemy, she and all allies restore a portion of their Action Skill Cooldown.
Lvl 14 |
Resonance Cascade Whenever Harlowe deals Radiation Damage to an enemy, she gains increased Action Skill Damage. This effect can stack.
Lvl 15 |
Resonance Cascade Whenever Harlowe deals Radiation Damage to an enemy, she gains increased Action Skill Damage. This effect can stack.
Lvl 16 |
Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
Lvl 17 |
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Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
Lvl 18 |
Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
Lvl 19 |
Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
Lvl 20 |
Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
Lvl 21 |
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Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
Lvl 22 |
Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
Lvl 23 |
Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
Lvl 24 |
Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
Lvl 25 |
|
Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
Lvl 26 |
Runaway Reaction Harlowe gains increased Status Effect Chance. Whenever Harlowe applies a Status Effect to an enemy, it becomes Entangled.
Lvl 27 |
Fuzzy Math Harlowe gains increased Status Effect Chance.
Lvl 28 |
Fuzzy Math Harlowe gains increased Status Effect Chance.
Lvl 29 |
|
Fuzzy Math Harlowe gains increased Status Effect Chance.
Lvl 30 |
Fuzzy Math Harlowe gains increased Status Effect Chance.
Lvl 31 |
Fuzzy Math Harlowe gains increased Status Effect Chance.
Lvl 32 |
Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
Lvl 33 |
|
Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
Lvl 34 |
Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
Lvl 35 |
Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
Lvl 36 |
Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
Lvl 37 |
|
Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
Lvl 38 |
Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
Lvl 39 |
Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
Lvl 40 |
Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
Lvl 41 |
|
Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
Lvl 42 |
Resonance Cascade Whenever Harlowe deals Radiation Damage to an enemy, she gains increased Action Skill Damage. This effect can stack.
Lvl 43 |
Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
Lvl 44 |
Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
Lvl 45 |
|
Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
Lvl 46 |
Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
Lvl 47 |
Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
Lvl 48 |
Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
Lvl 49 |
|
Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
Lvl 50 |
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Early on, prioritize Mains Hum and Momentum in the Cosmic Brilliance tree for both survivability and damage, as well as Mass Function and Neutron Decay for faster reload speeds and improved Gun Damage, respectively. Round this off with points in Resonance Cascade to improve your Flux Generator's damage, as well as Confirmative Reality for Active Skill Cooldown reduction to you and your allies.
Once you unlock the next branches, focus on the first branch and get Decoherence for the increased damage to Entangled enemies, Feedback Loop for numerous Action Skill buffs when Entangling enemies, and Runaway Reaction to easily apply Entanglement even without the Action Skill.
Once you get the needed passives, max out Fuzzy Math, Elementary, and Test Subjects in the Creative Bursts tree (Red Tree). Fuzzy Math gives Status Effect Chance, Elementary improves Harlowe's Elemental Damage and Status Effect Damage, and Test Subjects increases her Action Skill Cooldown Rate whenever she applies a Status Effect on enemies.
Harlowe Best Augment
| Lvl 6 | Lvl 16 |
|---|---|
 Coronal Mass Ejection
|
 Unified Theory
|
Starting at level 6, equip the Coronal Mass Ejection Augment to deactivate the Elemental Resistance of all enemies, as well as to increase the Status Effect Chance of all allies inside the Flux Generator.
Once you reach level 16, however, swap this out for the Unified Theory Augment, as it provides increased Action Skill Damage based on how many enemies and allies are inside the Flux Generator.
Harlowe Best Capstone
 Potential Transference
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||
| Tree |
Cosmic Brilliance
(Branch 1) |
|
|---|---|---|
| Effect | ||
| Charge Skill. Whenever Harlowe relocates her Flux Generator, it Teleports to a location in her crosshairs, consuming a Charge and creating a Shock Burst that deals Shock Damage to enemies inside it, grants a free Second Wind to allies, and Heals allies within the Flux Generator. | ||
For the capstone, Potential Transference is a must. Not only does it allow you to easily aim where you want to relocate your Flux Generator, but it now also deals Shock damage whenever you relocate it. Additionally, relocating the Flux Generator grants Second Wind to allies, and Heals allies who are within the Generator's range.
Harlowe Best Weapons
Best Weapon Type for Harlowe: Submachine Gun
The fast rate of fire of Submachine Guns makes it a perfect fit for Harlowe as her skills synergize well with elemental damage and Status Effects.
Best Manufacturer for Harlowe: Maliwan
Maliwan is the best manufacturer when it comes to elemental weapons, so getting a Maliwan Submachine gun for Harlowe is a must. For this build, try to find a Radiation Maliwan Submachine gun, as that will synergize with the selected Passive Skills. If you are able to get the Rocket Scientist Gravitar Class Mod, then getting a Shock Maliwan Submachine gun works as well.
Best Harlowe (Gravitar) Levelling Guide
Always Deploy the Flux Generator
The Flux Generator not only provides shields to Harlowe and other allies inside it, but it also damages any enemy that is caught in its radius.
As such, always start fights with the Flux Generator, as it will provide you with both survivability and damage that will help you deal with fights easily.
Look for Radiation Grenades
Radiation Grenades will help increase your total damage output, as this build synergizes well with Radiation damage.
Try to look for Radiation Order Grenades as these grenades will automatically seek enemies, removing the need to precisely aim your grenade throws.
Complete Side Missions and Bounties
To farm EXP efficiently, accept Side Missions and Bounties whenever possible, instead of just aimlessly wandering the map.
Side Missions and Bounties reward you with EXP upon completion, and most of these require you to fight various enemies, allowing you to gain EXP from multiple sources per mission.
Farm Mobs for More EXP
Other than completing Side Missions and Bounties, you can also earn a lot fo EXP by farming mobs you run into during your travels across Kairos. Additionally, you can also participate in World Events and Points of Interest that involve defeating a lot of enemies, such as Drill Sites!
Best Harlowe (Gravitar) Build Overview
Cosmic Brilliance Elemental Support Build
| Skills | |||||
|---|---|---|---|---|---|
Flux Generator |
Mains Hum Harlowe gains increased Maximum Shield Capacity and increased Maximum Overshield Capacity.
Momentum Whenever Harlowe Entangles an enemy, she and her allies deal increased Critical Hit Damage.
Fuzzy Math Harlowe gains increased Status Effect Chance.
Elementary Harlowe gains increased Elemental Damage and Status Effect Damage.
Mass Function Harlowe and her allies gain increased Reload Speed for every Entangled enemy.
Neutron Decay Whenever Harlowe Irradiates an enemy, she gains increased Gun Damage. This effect can stack.
Test Subjects Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.
Resonance Cascade Whenever Harlowe deals Radiation Damage to an enemy, she gains increased Action Skill Damage. This effect can stack.
Confirmative Reality Whenever Harlowe shoots an Entangled enemy, she and all allies restore a portion of their Action Skill Cooldown.
Unified Theory Harlowe's Flux Generator gains increased Action Skill Damage. This effect is increased based on how many Allies and Enemies are inside of her Flux Generator.
Decoherence Harlowe deals increased Damage with all sources to Entangled enemies. Enemies inside of her Flux Generator take further increased Damage.
Feedback Loop Whenever Harlowe Entangles an enemy, she gains increased Action Skill Damage, Action Skill Duration, and Action Skill Cooldown Rate. This effect can stack.
Potential Transference Charge Skill. Whenever Harlowe relocates her Flux Generator, it Teleports to a location in her crosshairs, consuming a Charge and creating a Shock Burst that deals Shock Damage to enemies inside it, grants a free Second Wind to allies, and Heals allies within the Flux Generator.
Runaway Reaction Harlowe gains increased Status Effect Chance. Whenever Harlowe applies a Status Effect to an enemy, it becomes Entangled.
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| Best Weapon Type | Best Manufacturer | ||||
| Submachine Gun | Maliwan | ||||
This build revolves around the Flux Generator and its ability to damage and debuff enemies while shielding, buffing, and healing allies. Emphasis is given on increasing the strength of your Flux Generator damage and lowering your Action Skill Cooldown to make it possible to throw your Flux Generator often. Submachine guns from Maliwan are preferred, specifically Radiation element ones, as the build synergizes well with them.
Best Harlowe (Gravitar) Build Playstyle
AoE Damage and Teamwide Buffs
With the Cosmic Brilliance skill tree, this build increases the buffs, healing, and shielding that you can provide your allies, while also improving Action Skill Duration and minimizing Action Skill Cooldown to not only increases the uptime of the buffs, but also of the AoE damage that comes with the Flux Generator.
Not Optimized for Boss Farming
Although this build can be used to fight bosses, it is not optimized for it and may take you some time if you try to fight bosses using it. If you plan to farm bosses as Harlowe, consider checking out our designated Boss Farming buld for Harlowe!
CHROMA Radiation Harlowe Boss Farm Build
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