4. Items for Contagion Hybrid Builds
Several unique items and rare gear can significantly boost your Contagion hybrid build. Here’s a list of item types to consider:

Essence of Delirium and Chaos damage modifiers on gear to Path of exile currency enhance Chaos scaling. Look for Chaos Damage over Time Multiplier or Increased Chaos Damage on rings, amulets, and gloves.

Items that increase Poison Duration: Gear that increases the duration of Poison will ensure that your Contagion's Poison effect lasts as long as possible, maximizing the damage over time.

Unique items for hybrid scaling: Some unique items, such as The Vertex (which boosts Chaos and Poison damage), are fantastic for hybrid builds that want to cheap Path of exile currency scale both Chaos and Poison effectively.

5. Conclusion
Contagion is a powerful hybrid skill for Chaos and Poison builds, offering high Poison and Chaos DoT potential across a wide area. With the right ascendancy, support gems, and gear, it becomes an excellent tool for dealing damage over time and applying ailments like Poison and Chaos damage to multiple enemies. By using it in combination with Occultist or Assassin ascendancies, you can boost both damage types while spreading your Poison and Chaos ailments across a large group of enemies.