Interaction with Gear:

These jewels modify your Ascendancy, giving you a new set of Path of exile currency modifiers that can complement your gear and build in very powerful ways.
For instance, if you're running a Deadeye and you want to switch to Raider, you can use Forbidden Flame and Forbidden Flesh to change your Ascendancy tree and pick up specific modifiers that benefit your current gear.
This allows for an incredible degree of build customization and flexibility.

3. Conclusion: Unique Jewels and Gear Interactions
Unique Jewels are some of the most powerful and flexible items in PoE 2 due to their ability to fundamentally alter the way gear interacts with your character’s stats and skills.
Whether you're enhancing life regeneration, energy shield, damage, or defensive stats, these jewels open up new pathways to create powerful builds with specific synergies.
Attribute conversion jewels, such as Green Nightmare and Green Nurture, provide essential flexibility for hybrid builds or builds that struggle to meet certain attribute requirements.
Corruption jewels can increase your gem level, making your build much more effective in terms of damage and utility.
Using Forbidden Jewels or Atziri’s Reflection can offer deep synergies with Ascendancies and gear setups, making them vital to specific build types.
Strategically using Unique Jewels allows you to modify and optimize your gear in ways that aren’t possible with regular crafting methods, offering both flexibility and power.

Forbidden Jewels are a special type of Unique Jewel in Path of Exile 2 (PoE 2) that can fundamentally change the way you approach your Ascendancy and passive skill tree. These jewels are incredibly powerful because they allow you to POE currency for sale gain access to powerful Ascendancy passive nodes that would normally be restricted to a specific Ascendancy class. By using Forbidden Jewels, you can modify your character’s path and pick up Ascendancy bonuses from a different class or combination.