
I believe I have explained a number of times how I came to be like this already, so if you really must know, I will refer you here.
As for the pros and cons for being a Phantom, there are quite a few.
I suppose I could start with the positives: Not having a need for food or drink is the first one that comes to mind. It may sound strange for some, but it has been rather nice for me not having to worry about that one extra little thing in this current form. Another pro with being a Phantom is being able to travel through the Ghostly Ether. Makes getting from one place to another much faster than normal. Being impervious to just about every physical attack is sort of nice as well. I don’t need to be worried about getting hurt as much as I used to.
However, with the positives, there also comes the negatives…and unfortunately, there are far more negatives than positives with being a Phantom for me.
The biggest con I have for this form personally, is the fact that I literally steal the life-force of a living individual the moment I make any sort of physical contact with them. This is an involuntary trait, and one that I cannot stand the feeling of. I am essentially killing whomever or what I’m touching when it happens, regardless of the fact that it is a slow process in general. I’m not even sure why I have this trait in the first place, but then again, if I am right in my theory that those ghostly knights have something to do with me being in this form, I suppose it would make sense. I had bumped into a couple of them during my encounter when I was alive and they seemed to have the same sort of effect on the living as well.
Other negatives include not being able to venture out, or come into contact with direct sunlight, not having the need for sleep, increased (and often times, unbearable) sensitivity to magical attacks, not being able to venture into certain areas of Hyrule and the constant inner turmoil I tend to feel.
Sunlight is a given. It’s just simply too painful to be out in broad daylight and it literally does burn away at what I am in general. A similar process tends to happen with most magic attacks as well, so I often shudder at the thought of what light magic could potentially do to me as a result. Not being able to sleep can be maddening. I don’t think it’s healthy for anyone, living or dead, to be trapped for eternity with only their thoughts to keep them company for the most part. It begins to eat away at you after a while. Not being able to enter certain areas in Hyrule is more of a pain than anything else. It isn’t the greatest con I have, really, but it does hinder on what I could potentially do in order to lift this curse. The feeling of being trapped isn’t always fun as well.
The constant inner turmoil is rather confusing however. I have mentioned several times that it feels like I’m always fighting with myself; with something much darker than it really should be. It can be frightening sometimes. I have nearly lost track of who I am exactly on many occasions. Thank the goddesses I have Epona there for that. She seems to be able to pull me back into awareness whenever that happens.
Moving onto abilities I’ve gained as a Phantom, some of them overlap with the pros and cons, so I’ll just name the few I haven’t already mentioned.
I can pass through most physical objects, “disappear” and “reappear” at will (this is done with moving in and out of the Ghostly Ether within one area, but I’ve been told that’s what it looks like to most people) and communicate with other members of the dead, or even some monsters that you wouldn’t be able to hear speak otherwise (though they don’t always have the most pleasant things to say).
I believe that’s about it. I hope I was able to answer both of your questions relatively well anyway.