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Borderlands 4
Harlowe the Gravitar Best Builds
☆ How Rush Saved Mercenary Day (Bounty Pack 1)
★ 12 active SHiFT Codes as of December 4, 2025
☆ Black Market Location
★ Elemental Weakness Chart
☆ Legendary Weapons
★ Builds: Vex | Amon | Rafa | Harlowe
These are the best builds for Harlowe the Gravitar in Borderlands 4. See the the best builds for Harlowe, including the best skill tree, action skills, passives, and weapon choices in this guide.
| All Harlowe Guides | ||
|---|---|---|
| Best Builds | Cosmetics | Skill Trees and Voice Actor |
| Leveling Build | Boss Farm Build | Cryo Stasis Build |
List of Contents
Best Harlowe Builds (Gravitar)
| Jump to a Section! | ||
|---|---|---|
| Leveling Build | Radiation Build | Cryo Stasis Build |
Flux Generator (Leveling 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.
|
||||
| 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.
CHROMA Radiation (Boss Farm) Build
| Skills | |||||
|---|---|---|---|---|---|
 CHROMA Accelerator |
 Field-Ready Prototype Harlowe gains increased Action Skill Damage.
 Pulse Drive Harlowe gains increased Action Skill Cooldown Rate.
 Make Extraordinary Harlowe gains Critical Hit Chance with all Skills. This chance increases every time Harlowe Entangles an enemy. This effect can stack.
 Voidstar Whenever Harlowe's Unstable Energy Pocket passes by an enemy, it loses a portion of its current Total Health and becomes Frozen.
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.
 Enriched Harlowe gains increased Radiation Damage.
 Practical Applications Harlowe gains increased Skill Damage.
 Poisoned Sun Harlowe gains increased Radiation Damage and Irradiation Chance.
 Fissile Launcher Whenever Harlowe damages an Irradiated enemy or an Entangled enemy, shoot a Radiation Dart at another enemy.
 Chain Reactor Harlowe deals Bonus Radiation Damage to Entangled enemies.
 Demon Core As Harlowe's Unstable Energy Pocket travels, it shoots Radiation Darts at enemies. Whenever Harlowe Entangles an enemy while her Action Skill is active, automatically Irradiate that enemy.
 Dirty Bomb Whenever Harlowe Irradiates an enemy, create a Radiation Explosion on that enemy.
 Mechanical Brilliance Whenever Harlowe damages an enemy with a Skill, she gains increased Skill Damage. This effect can stack.
|
||||
| Best Weapon Type | Best Manufacturer | ||||
| Submachine Gun | Maliwan | ||||
The build relies heavily on the CHROMA Accelerator and Status Effects for damage. Additionally, the Status Effects help shorten the CHROMA Accelerator's cooldown, allowing you to shoot it frequently when needed.
For weapons, we highly recommend Shock or Radiation Maliwan Submachine Guns, although you can also use the Katagawa's Revenge if you have it.
CHROMA Radiation Harlowe Boss Farm Build
Cryo Stasis Build
| Skills | |||||
|---|---|---|---|---|---|
 Zero-Point |
Pulse Drive Harlowe gains increased Action Skill Cooldown Rate.
 Action at a Distance Whenever Harlowe applies a Status Effect to an enemy, she gains a chance to apply that Status Effect to each Entangled enemy.
Fuzzy Math Harlowe gains increased Status Effect Chance.
 Periodic Table Flip Harlowe gains increased Elemental Damage, Status Effect Application Chance, and Cryo Effectiveness.
 Ripple Effect Kill Skill. Whenever Harlowe kills an Entangled enemy, automatically Entangle another nearby enemy.
 Too Coolant For Schoolant Whenever Harlowe deals Cryo Damage, gain increased Action Skill Cooldown Rate.
 Cryodynamics Harlowe gains increased Cryo Damage.
 Unstable Ice-otope Kill Skill. Harlowe deals Bonus Cryo Damage with all sources.
 Cold Storage All Damage Dealt to enemies in Stasis is stored. Whenever an enemy is Slammed or Stasis ends, create a Cryo Explosion based on all Stored Damage and centered on that enemy, and also automatically Freeze other enemies nearby.
 Keep Ice On That All Cryo Damage Harlowe deals gains Lifesteal. If Harlowe's Health is full, she gains Overshield instead.
 Endothermic Reaction Whenever Harlowe Freezes an enemy, create an Endothermic Aura that deals constant Cryo Damage to enemies around it. Harlowe's Endothermic Aura deals increased Damage based on her Overshield. The more full, the greater the bonus
 Flash Freeze Whenever Harlowe deals Cryo Damage with an Action Skill, she gains a chance to Freeze that enemy.
 Heat Sink Whenever Harlowe Freezes an enemy, she gains increased Action Skill Cooldown Rate.
 Triple Point Whenever Harlowe deals non-Cryo Damage to an Entangled enemy, she deals Bonus Cryo Damage to that enemy. If she deals Cryo Damage to an Entangled enemy, she deals increased bonus Damage.
 Cold Plunge Whenever Harlowe Slams an enemy, create a Singularity on that enemy, followed by a Cryo Explosion.
|
||||
| Best Weapon Type | Best Manufacturer | ||||
| Submachine Gun | Maliwan | ||||
The build relies heavily on the Zero-Point Stasis and Cryo damage to create a loop that continuously deals damage to enemies and charges your Action Skill quickly. It also provides survivability via Overshields and Healing.
For weapons, we highly recommend the Ohm I Got Submachine Gun or the Aegon's Dream for Legendary options. Alternatively, you can use Cryo Maliwan Submachine Guns.
Borderlands 4 Related Guides
Best Builds for Each Vault Hunter
All Character Builds
| Character | Build |
|---|---|
 Vex |
|
 Rafa |
|
 Amon |
|
 Harlowe |
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Harlowe the Gravitar Best Builds
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