Efficacy Support
Support, Duration
Level: 1–20
Cost & Reservation Multiplier: 130%Requires Level 8Supports any skill that deals damage or has a duration.Supported Skills deal (15–24)% more Damage over Time
Supported Skills have (15–24)% increased Skill Effect Duration
Additional Effects From Quality:
Supported Skills deal (0–10)% increased Damage over Time
Level: 1–20
Cost & Reservation Multiplier: 130%Requires Level 8Supports any skill that deals damage or has a duration.Supported Skills deal (15–24)% more Damage over Time
Supported Skills have (15–24)% increased Skill Effect Duration
Supported Skills deal (0–10)% increased Damage over Time

Efficacy Support is an item in Path of Exile.
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We usually keep stock of Efficacy Support.