Before explaining about the hellion species. I want you to realize this, I did not originally create this race, but a friend did, but I fell out with her. So I will be changing/making it more of my creation over time. There is also a chance that any lucifers, satans and so on may be clashy as hellion did originate from Lucifer and such.
Hellions - Hellions are the cream of the crop. Within hell's armies and hierarcy, they are at the very top. For all intents and purposes. Lucifer and Satan are hellions. They are a step above Archdemons. When Lucifer fell from gods grace, he become an Fallen angel and when he fell to hell, he became a Hellion at that point. The original Hellions all have within the fallen angel side as well. Unlike those born or created afterwords.
Angels - Like previously stated, those that first fell retained their angelic forms and abilities and those born after did also carry them but the later generations slowly lost that power. However, their wings are black instead of white.
Animal Affinity - Every single Hellion, weather a former angel or not. Even those created all have an affinity with a certain animal and it can be anything, even a demon or an angel. Even hybrid versions, such as Nekonimi, Kitsunes and such.
Combined Bloodlines - Hellios are unique that unlike most beings that are born with one blood, or even multiple. The bloodlines can surface if it manages to win the inner battle that most hellions go through. Some are more dominant than others. Most hellions one meets is in their normal state, meaning that none of the other bloodlines within, even the hellion side are not in control, but may be fighting for control. This side good be of any alignment. Evil, good, neautral(Or any of the other strange ones). A hellion can access all powers and abilities of all the sides if they choose to. However, they are never at full strength until that side takes over fully. Using powrs and such from a side will let that side gain even more control over the hellions body. It is called tapping when they do use those powers. By tapping into the powers of one, the others are weakened. For example, if one taps into the hellion side, the animal side, or angel side will weaken and he/she will become more inner hellion awakend, same goes for any other side. Even if one merged all bloodlines into a singular power and form, they would be at half strength and awakening for the moment as a pure bloodline could still be more powerful than all of them merged.
Malice - Regardless of alignment, Hellions are naturally malicious creatures. Once their inner hellion begins to be unleahsed, their malicious nature starts to reveal itself. Their intent to harm can become quickly, so great that even loved ones and family are not safe. A hellion can resist, but in most cases, the inner hellion will win. In a lot of cases, the hellion will rend a person to peices without remorse. In the even of a loved one, bonded or not. Their desires may also be present and they may force themselves upon them. (It was either to add rape to this, or you getting ripped to shreds. It's something I cannot get rid of cause it's a part of what the hellions are. Sorry. :( That's why reading this info is important) Angering a hellion is highly unwise.
Embracing - Embracing is when a Hellion decided to finally embrace a single side over all the others. What this does is purge the other bloodlines from his body. He will still be a hellion regardless. Even a half hellion can become a fully hellion if he/she embraces their hellion side. More examples, if one has a dragon side and they embrace it, they can become a full blooded dragon. The pros to this is that you won't have to fight for control and have the powers and such at their full strength. The cons is that you won't be able to call upon the powers of any other side. Any children born though, will still be a hellion. Parts of the hellion bloodline will still exist to sire hellion children.
Relation between Hellions and Demons - This also includes archdemons and such. It also depends on the demon and the hellion in general, but most hellions consider themselves above demons and some are not afraid to display this. To say that there is racism against demons with the hellions is no lie. Most demons desire to be reborn as a hellion. It's to be expected by hellions for demons to obey.
Instults - Insulting a hellion is grounds for their malice to be unleashe. Insulting one willonly hasten your death. Even if you somehow manage to survive the malice of a hellion, things will never be the same again. In fact, calling them a demon is the grandest of insults and there will be no battle. No hesitation to let that side come out and rend or rape you without mercy. Considering most view demons beneathe them and it seems ingrained in their blood to take great offence to being called a demon or considered one.
Alignment - Hellions are not born all evil, they are no different than humans and can be good kind individauls, or they can be evil or in between. At least until one of their sides take over.
The Sides - Due to the various sides that hellions are born with, you could say that they have split personalities. Their minds are in a constant war for control, even if they seem perfectly fine on the outside. Anything can trigger one side to gain in control. Even tapping can do that. In most full blooded hellions, there can be three or four sides battling for control.
Full Hellion - Whether the fully hellions is brought out willingly, or forced through anger or something, or if the hellion just appears as as a fully hellion and regardless of alignment, they are the most malicious creatures in existance. Friends, family, allies, loved ones. None are safe from their malicious wrath. A hellion won't stop until they accomplish their mission. On very rare occassions can they bring themselves to reason. They will destroy any and all that dare to stand in their way. When the full hellion is brought it, in most cases, they are forces of domination. The only exception is if they willing submit or are forced into submission. While it's possible for one to just be naturally submissive, it is extremely rare but also believed that a submissive full hellion to be extremely sexual. Unlike many beliefs. Hellions do not bear red flesh, it is normal or black at least. Nor do they bear horns, if you see one with horns, it's usually due to their demon or dragon bloodlines. They can have wings, claws, tails of any shape. Their eyes will remain mostly normal until they go full hellion, which can appear feline or reptilian. Just not resemble human eyes. Or rather, demonized versions.
Hellion Powers - Hellions are possbily the most versatile of creatures when it comes to powers and abilities. They are nearly limitless on what they can do. Family powers and abilities do not exist. The parents could have powers with flame or ice and their children having nothing to do with them. Each one is unique.
Death - Killing a hellion is no simple task and they do not have the same concept of death as mortals do. Hellions are immortal, so long as their soul remains in tact, but t hey do have a true way to die. Aside from their souls being attacked spiritually. Every hellion is usually different. For example, a certain place or certain items are required to truly kill them, but the same reasons could also be a means to strentgthen them beyond their normal level of strength. As an exmaple and one I willingly give. Xephrenya can only be truly killed in the depths of the demon world, but she is also twice as powerful down there. When they die normally with their souls in tact. They are trapped in hell for a time until their physical bodies can be restored which takes time. (1 rl month time for Xephrenya)
Weaknesses - Hellions hardly have any weakness but the ones they do have can be lethal, they are at the very least vulernable to the holy element, as it can harm their souls.
Tapping - Hellions are able to tap into any part of their bloodline. Their hellion side, their animal side or any other blood that is flowing in their veins. Doing so allows them to call on abilities and powers from that side, which only grow strong the more they tap into that side. The more they tap, the more that side will gain control of Xephrenya's body. At the same time, any bloodline their parents carry, their offspring will also gain. Adding more inner battles for their children.
Ressurection - Hellions have a large ammass of magick and they are fully able to ressurect a person. Create a new physical body and grab their soul and put it into it. Even their own kin or making a person into a hellion. That is why if a person should die they care about, they know full well they can bring them back. It is their death they fear, not the deaths of their loved ones.
Magic - Hellions have access to Mana, the power of magic and are able to use it at their own leisure. From the simplest of magicks to the strong and most ancient of magics. Even some female hellions can make themselves pregnant, with assistance from at least another.