S.J. Aeternum "Side Effects"

- Soren possesses knowledge on all events involving a Pure Determination, including alternate timelines where they had done another action, as a result of observing each of the timelines visible in the Space Between Timelines. (Basically he posseses knowledge regarding all three paths of UT, beyond what any person would canonically know besides Frisk) This knowledge also extends to knowing of the existence of entirely different multiverses, though not exactly their contents.
- He isn't actually "Determined" to do anything. Rather, he's simply uncaring for the most part, though he does tend to make an obvious attachment to people who he finds interesting.
- He does not age, and as such, if he isn't killed, he theoretically can live forever.
- He tends to try and play stupid when something directly (and obviously) involves him, as he tries to avoid trouble because of his lack of "Determination" to do anything.
- At random times during the day, his subconscious, as well as his connection to the Space Between Timelines tends to cause his mind to enter a temporary body in timelines where a Determination has "RESET". These timelines overall are timelines that, due to a lack of a Determination, have completely ceased flowing and have become isolated from other Timelines, leading them to eventually collapse. These timelines are only variations of the worst possible situation, usually when Monsterkind and Humankind have reintialized their centuries long war. Most of the time, he tends to collapse immediately after returning, as the return trip drains his stamina completely. To the outside observer however, it will simply look like he collapsed during whatever he was doing at the moment, as his consciousness gets returned to the exact moment it left.
- He actually knows of most of the secrets of manipulating SOULs, he just doesn't actually mention it unless someone directly asks.