Unified Theory
Your grasp of magical theory runs deep enough that Arcana alone stands in for Nature, Occultism, or Religion, without the usual outsider's penalty.
You understand the common underpinnings of the four traditions of magic and magical essences, allowing you to understand them all through an arcane lens. Whenever you use a skill action or a skill feat that requires a Nature, Occultism, or Religion check, depending on the magic tradition, you can use Arcana instead. If you would normally take a penalty or have a higher DC for using Arcana on other magic (such as when using Identify Magic), you no longer do so.
Level 15 · Type Skill
Prerequisites legendary in Arcana
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