Test Subjects — borderlands | wkmrr.org

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Test Subjects is a passive skill on the root branch of Harlowe's Creative Bursts skill tree in Borderlands 4.

Effects

Whenever Harlowe applies a Status Effect to an enemy, she gains increased Action Skill Cooldown Rate.

Action Skill Cooldown Rate: +7% per rank

Rank	1	2	3	4	5
Action Skill Cooldown Rate	+7%	+14%	+21%	+28%	+35%

v • e Creative Bursts

CHROMA Accelerator Cyclotron • PPE • Fuzzy Math • Field-Ready Prototype • Bleeding Edge • Voidstar • Neutron Capture • Elementary • Test Subjects • Get Up and Go • Elephant's Foot • Great Red DoT • Enriched

Branch 1	Practical Applications • Field Research • Carry the One • Core Sample • Break the Ice • Opposing Force • Q-Ball • Cold Welding

Branch 2	Poisoned Sun • Special Purpose Magnets • Glow Up • Fissile Launcher • Chain Reactor • Wasted • Demon Core • Dirty Bomb

Branch 3	Highly Efficient • Containment Breach • Mechanical Brilliance • Eureka! • Rounding Up • Alternative Fuel Source • The Shattering Light • QED

v • e Harlowe

Trait	Entanglement

Action Skills	CHROMA Accelerator • Flux Generator • Zero-Point

Skill Trees	Cosmic Brilliance • Creative Bursts • Seize the Day