Mmoexp Path of exile currency:

2. Support Gems
Support gems are essential for maximizing the potential of Contagion in a Chaos/Poison Hybrid build. Here’s a list of support gems that synergize with Contagion to increase its damage and effectiveness:

Chaos/Poison Support Gems:
Void Manipulation: This support gem increases Chaos damage and is perfect for scaling the Chaos portion of Contagion. Since Contagion deals Chaos damage over time, this gem will amplify the overall damage output.

Vile Toxins: Increases Poison damage and adds more damage to Path of exile currency your Poison ailments. This gem works excellently with Contagion since it boosts Poison damage, ensuring that the Poison effect applied by Contagion will last longer and deal more damage.

Unleash: This support gem lets you store additional uses of Contagion, effectively letting you apply more Poison and Chaos damage over a longer period of time. It synergizes well with the Poison DoT as cheap Path of exile currency it spreads over multiple enemies.