The user can acquire more knowledge by supernatural means (magic, psionics, etc.) to add to their already vast knowledge. The amount and the limit of knowledge possessed varies by user: a low level user may only have mastery of a single field whereas a high level user may achieve Cosmic Awareness or even Nigh-Omniscience.
The user possesses immense knowledge of the universe. They are aware of most things such as powerful spells, advanced science, where to find someone, etc. Some users knowledge may exceed others with the same power, as there may be some things the user is unaware of.
Limitations:
Despite having great knowledge, there may be certain things the user does not know or is unaware of.
May be limited to their own universe, meaning if they are transported to a different universe, they may not have knowledge of that universe
Other users of this power may have knowledge that exceeds the user's.
User may need universal awareness to comprehend and process such vast knowledge.
As the result of lack of awareness, the knowledge may drive the user insane
Examples: Caspian, Tyrannon, Tyneras and the Anti-Monitor possess this power.
User knows almost everything in existence while being blocked from certain details or being limited in other ways, possibly only being able to see one timeline or universe, or have just small patches of information that are missing or blocked out. Thus allowing one to keep their sense of free will and uncertainty.
The user’s mind is unblocked to the entire universe; they know every answer to every question, past, present, and future. May or may not allow the user to have all information at all times as some knowledge may be spontaneous while some may require the action of others.