The Dark Legion

Soul Contract: Perhaps the second most potent ability at the parasite's disposal. The Soul Contract is the second best thing to fully infesting a person's body and claiming their strength as its own. The process is a simple one, but very effective and diverse in what occurs. To incur a soul contract, the creature simply need ask them if they accept a contract that will be told at the time of through any medium. The terms are usually vague, promising power and aid in fulfilling some kind of vendetta or revenge against another in return for a favor or two in the future. If they accept, then the creature can make the deal official by any means it desires. There isn't a specific ritual to it and could be made painfully over-the-top, or as simple as a touch on the forehead. They need not even be close to one another for this to take effect. However, there is a way to force the contract on to another, but it is much harder to do. The first is that the subject in question be drastically weakened. If they are near the creature's level or even decently powerful, they would need to be in a state of great emotional distress or decreased willpower. The second medium is if they simply are drastically weaker than the parasite. In which case the contract can be forced upon them.

Now, what does this contract do exactly? As in the name, it is a contract of the soul. Unlike traditional demon cliches, this isn't an ownership of the one in question, but a deep link put in place between the soul of the parasite and the subject in question. There is no limit to how many people can be linked this way, but it can also be broken should the subject desire it and have the willpower to do so. Power isn't even needed to break the bind, only willpower. The contract has benefits for both parties that make it a less-than-easy choice to simply request the contract be removed or force it off themselves. Starting with immediate effects. The contract will put a seal somewhere on the subjects body. This seal will be pitch black in color and has the mold of a serpent's head.. While this is in place, the effected will gain an enormous rush of energy and even the parasite's regeneration immediately after the contract begins. This only lasts for the thread in question, but is still useful. The second and more long-lasting change is in the subject's intent. The seal brings out the darkest parts of who they are, be it greed, lust, or just wrath and hatred. These aspects are amplified multiple times over, turning minor flaws into the biggest parts of who a person is so long as the contract is in place.

This seal will allow the parasite to give the subject in question immense power, No matter how weak they were before, this can raise them up to a level just one tier lower than the parasite itself. If someone is already at that level or above, a bonus is still obtained. The limt will change to instead offering only a half-tier bonus ( 1-1 -> 1-1+ etc). Like all other things, the parasite controls how much power it offers and can alter the tier anywhere from their base level to the maximum on a thought. Additionally as a bonus, the creature can allow someone access to the darkness cloak ability with the same benefit it has while using it. However, unlike the host, that is the only ability it can offer through this medium, and a seldom one. Only the most useful of contracted combatants will be allowed to use it. A bonus of such power is life changing for some, but it isn't without flaws. Naturally the parasite has benefits from the ordeal as well.

The first is an always active effect that slowly drains the soul of the one effected. This is so ridiculously slow that it can't be noticed for an exceedingly long amount of time. This is a medium for the creature to gain energy from other creatures aside the host and even gain the essence of races it can't normally infest, such as Quincy. The process is very slow though, not having much effect until weeks have passed with the seal active. At that point the subject may begin to feel minor illness that fades away in a few hours, only coming back every few weeks for short bursts of time. Only after multiple months does it become worse and last for longer periods. This can never kill someone, but eventually can build to serious migraines and other pains. The more power they gain compared to their original tier, the more these effects manifest and plague them throughout a month.

The creature also has extensive control over the contracted subjects. A number of simple powers can be accessed relating to those in question. The first is summoning, a basic technique that can take away someone under the conscription from the area they are in and bring the person directly before the parasite and their current host. This takes the form of a mass of dark energy manifesting around the target and consuming them to nothingness; rebuilding their body under the guise of another energy mass directly before the creature. The opposite can also be done. Through the contracted, the parasite can warp its own body to the same location as any that are linked to its soul. At the time the host will also be brought along by the extension of the parasite's will. These methods both take a full post to complete, making it unwise during battle where a distraction isn't available.

The second means of control is sensory. At any time the parasite can telepathically communicate with any contracted soul whether they want to or not. At this time the creature can read their thoughts and project its own at light speed. Aside being nifty communication, this telepathy has controlling properties. The words and commands spoken over this medium have an alluring effect that makes the subject desire to follow them. This is not control, but an extremely effective passive suggestion, One can easily ignore, or alter the orders given enough willpower, but since most subjects are treated as friends and associates, it isn't as easy as disregarding an enemy. It has the same effect as a request being given by a close friend. Sure, anyone could turn it down. They're not being forced to obey. They just want to. The second effect is sensory intake. At any time the parasite can tap into the senses of those affiliated with the contract and hear what they hear, see what they see, so on and so forth. It is like looking at a video through the eyes and ears of the subject and makes for useful tactical application. That is as far as it goes

The last effect of the contract is the most useful for the parasite,. While in place, the creature can use any powers that the contracted can utilize in all but their peak state, unless the person only has one state; in which case all powers will be available. This will only apply to personal ability, not racial skills or natural talents. For example, if a fire bender were to be contracted under this ability and they had access to their bankai, the parasite, and thus the host could utilize all powers and techniques available to the subject from their base form and shikai. The techniques follow the same guidelines and barriers as the original user, but do not require the same medium. Rather than a sword, the parasite could bend flames through its body, or the host's physical appendages. Any power generated via this medium is composed of malevolent energy and altered so that it can not harm the parasite or its host. This, combined with the initial benefits of its parasitic nature give it one of the widest potential arsenal of techniques in existence! Due to this, it hasn't come to develop many skills of its own, leading to a fatal issue down the road. Should all the contracted subjects break free or die off, or even the host killed, the parasite has extreme difficulty managing on its own accord alone. This dependency keeps it in check, needing to keep some subjects appeased to stay in power.

These contracts can be broken in three ways. The first is to overcome the will of the parasite and free yourself through excessive effort and energy expenditure. The second is if the terms of the contract are violated. The contract, though often vague is important. The terms must be fulfilled on the Hollow's end to remain active. Once those terms are shattered, the contract is removed. However the rules toward it are very literal, so if a technicality permits something, there are no drawbacks to it. the last medium is to kill the parasite itself, which will remove all influence it has on the world and the souls that reside in it.