Power Jewels

They are jewels that will give any of your skills a bonus. When creating them, they can leave any skill, a +1 bonus to be, +1.5, and +2. You can create them for various types:

Rings

, An ingot of iron 100 Tinkering and 80 Magery | One [power stone] [Power Stone] is necessary.

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Earrings

, An ingot iron 102 Tinkering and 80 Magery | One [power stone] [Power Stone] is necessary.

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Necklaces

, An ingot of iron 104 Tinkering and 80 Magery | One [power stone] [Power Stone] is necessary.

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Bracelets

, An ingot of iron 106 Tinkering and 80 Magery | One [power stone] [Power Stone] is necessary.

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Once you have one gem of each type and the same skill, will give you a bonus depending on the average of the 4 gems.