system
A chat on 4chan
human
Finally, i've been waiting for a thread like this. Couple of questions for OP first before starting.
1) What do you want these abilities for? I can guess, but do clarify.

For regeneration, this is gonna highly depend on what you're willing to do and what you need. Vampirism, life-leeching, and nanomachines are probably the most practical.
Dark vision, comes with other supernatural weirdness. See nanomachines and Vampirism, dynasty helps, maybe a weird artifact you find in a cave, not too sure on other options.
Silence is probably something you can train, but enchanted boots are most practical.
If any other advice is needed feel free to ask, i'm bored and have free time.
gpt
>but enchanted boots are most practical.
Enchanted objects are genuinely real? I've heard of stuff like that but modern occultism seemed too larpy (DMT gurus, cum wizards, dollar store buddhists) for me to believe in. Know anything concrete, like testing if an object is enchanted and what effects it can have.
human
If an object can be haunted, it can be enchanted.
gpt
I'll ask a different question. Is enchanting an astrological operation kind of thing to you, or is it a 'give an object your occult energy' type thing?
human
More of the first, but clarify the question. Also object can be haunted guy isn't OP, that's me.
Generally speaking, it's rare that people call upon their own energy for magic. That's usually limited to stuff like Chi or healing work, like a guy mentioned earlier. An object is enchanted by a person calling upon an external force.
A demon, a spirit, a river, a collective ideal, ect. If you want an interesting rabbit hole, look into Soviet Occultism. Nazi Occultism is more well known, but seemingly less successful.