-Non-corporeal. You do not have a body or a gender. You are a formless spirit of pure evil. Attacks of a purely physical nature are useless against you.
-Shape-shifter. At the beginning you can take the form of anything from a small animal to a moderately enhanced normal sized human. Initially this process is time consuming taking anywhere from a few days to a few weeks. As you gain more mortal souls (and thus power) the extent of this ability will increase. The Old Ones are said to be powerful enough to turn into creatures capable of destroying whole cities in one attack.
-Dimensional Traveler. Demons would never reproduce if they had to share the same world with their children. Once you acquire your first soul you will gain access to the multiverse. However you must enslave at least one soul in any dimension you enter before moving on to the next one.
Racial Features
-Truthful Demon. The universe and soul contract laws have certain sticky rules. That is you cannot outright lie to mortals about what will happen if they agree to give you their souls. Doing so will invalidate any contract signed. However that does not mean you cannot distort things to the point where the truth is unrecognizable. Like the Fey you are a master of misleading with the truth.
-Contract Enforcement. Did a mortal agree to sell you their soul if only you did something for them? Oh and now they think they can back out of the deal? Too bad for them. You have great power to enforce any agreements made with mortals with extreme prejudice.
-Demonic Communicator. You are instinctively fluent in all forms of communication. Language is never a barrier for you.
-Demonic Senses. You are able to sense beings and areas of great power over vast distances if you concentrate. This helps you locate tempting powerful mortals or avoid an area if you think you are too weak to handle the beings residing there. Note that these senses are not perfect and some beings or factions (especially those pesky Holy beings) can hide from or fool your senses.
-Demonic Concealment. You have great capacity to hide yourself and your servants from others. The only drawback is that your use of powers is extremely limited if you wish to remain hidden. Even a moderate use of your powers breaks concealment.
Unique Features
-Big-Hearted Slave Master. You are unique in that you have no wish to brutalize or otherwise cause your enslaved souls suffering. Instead you want them to be generally happy or at least not-miserable. This is a horrible shameful defect that you hide from everyone. Maybe over time you'll figure out how to become a proper demon who enjoys spending your free time torturing the souls you have enslaved.
You are before the demon who spawned you. Since it has no gender you refer to this demon as your FaMother. It is old and powerful and rules over it's dimension with an iron fist as is right and proper. You do not love your FaMother. However you do feel a certain amount of healthy respect and gratitude that it did not rip your essence to shreds while you matured.
"You," FaMother said to me in my mind, "the time has come. The portal is ready. You will leave this dimension immediately and never return."
"Of course Master," you say in a subservient tone, "I am ready."
"As of this moment I am no longer your Master," your FaMother said, "if I ever see you again I will do my best to dismember your essence, consume the souls of your servants and trap you in suffering for all eternity."
Sometimes you wondered if your FaMother was too soft. Always teaching you new things and making sure it hurt so you wouldn't forget. Now it was nice enough to warn you so you wouldn't accidentally get hurt. Maybe it was a sign of weakness. If so you really need to come back and rip this dimension out of the grasp of your FaMother when you are strong enough to face it. Easy prey after all.
"I understand," you say deferentially, "thank you for all you've done for me."
"Humph," your FaMother scoffs. With an effort of will a swirling green portal opens up in the air in front of you. Without any warning your FaMother gives you a metaphorical kick to the rear and sends your spirit crashing into the portal.
"And stay the fuck out of my dimension!" you hear as you are sucked into the spiraling portal.
--------
Your disembodied spirit appears in a new dimension with a jarring surge of power. Shaking your metaphorical head you dust off your metaphorical clothes and take a look at your surroundings. It looks like there is a city in the distance. Good. At least your FaMother was considerate enough to dump you in a world with actual mortal souls to enslave. You half expected to be sent to a dead world where you would spend all eternity angry, frustrated and alone.
Your FaMother really has gone soft. You make a note to invade the dimension it rules as soon as you are ready.
Taking the logical course of action you begin to float towards the city. Before long you arrive and follow some people into what looks like a Bar. They had those in your FaMother's dimension but this one seems much nicer, what with the relative lack of evil and despair hanging in the air. You drift from table to table for a while listening in to conversations. After a short time you get some tid bits about this brand new dimension you find yourself in.
[X] These locals are a strange lot. How do you hide whole villages in leaves or stones?
[X] Apparently you arrived outside of a city called 'Tokyo-3'. You wonder what happened to the first two. Probably a demon.
[X] What is Mako? And what does an avalanche have to do with anything? You haven't even seen any snow!
[X] It's curious, many of these mortals look very different from the ones in FaMother's dimension. Why are so many people talking about a shepherd? And what does it matter that he/she is the first human disembodied shade?
[X] Funny a lot of the 'people' in this bar do not have a soul already. How curious and disappointing. And what exactly is this 'Slayer' they keep going on about? Whatever it is you have to admit it chose a good name.
[X] It's curious, many of these mortals look very different from the ones in FaMother's dimension. Why are so many people talking about a shepherd? And what does it matter that he/she is the first human disembodied shade?
[X] These locals are a strange lot. How do you hide whole villages in leaves or stones?
[X] Apparently you arrived outside of a city called 'Tokyo-3'. You wonder what happened to the first two. Probably a demon.
[X] What is Mako? And what does an avalanche have to do with anything? You haven't even seen any snow!
[X] It's curious, many of these mortals look very different from the ones in FaMother's dimension. Why are so many people talking about a shepherd? And what does it matter that he/she is the first human disembodied shade?
[X] Funny a lot of the 'people' in this bar do not have a soul already. How curious and disappointing. And what exactly is this 'Slayer' they keep going on about? Whatever it is you have to admit it chose a good name.
[X] Apparently you arrived outside of a city called 'Tokyo-3'. You wonder what happened to the first two. Probably a demon.
Hi Shinji! We have a deal for you!
ohhhhhh wait Gendo. Gendo needs us!!!
edit: oh wait, awakening power ISN'T wish granting. So much for destroying Eva's plot at its source.
[X] These locals are a strange lot. How do you hide whole villages in leaves or stones?
I want this for the chakra abilities, but Final Fantasy also appeals (for the magic) and Mass Effect (for the tech).
I don't want NGE (unless we can get angels) because, outside of a select few, there isn't much to get there and Buffy has way too many world-ending threats and powerful soulless monsters (who we can't get) to be my choice.
[X] Apparently you arrived outside of a city called 'Tokyo-3'. You wonder what happened to the first two. Probably a demon.
Time to make things even worse!
...Huh. The Angels have souls, right? Or at least Lilith and Adam do. Let's see if we can get a slice of the Zeruel/Ramiel awesomeness.