What kinds of magical/special/crazy powers does your character have, if any?: Teresa is a half-human/half-youma hybrid referred to by the common populace as a 'Claymore'. Infusing her with demon flesh grants her highly increased physical abilities and some mental abilities. They are as follows:
Hybrids require very little food or sleep.
Strength: Teresa has strength that far surpasses that of a human, allowing her to wield a very large claymore sword made of an unknown dense metal one-handed without breaking a sweat. She is capable of launching an opponent a few stories into the air with a single kick and was able to rip the awakened Rosemary's arm off with a single twist of Teresa's off-hand.
Speed: Teresa's reflexes and speed are also far above human capacity. She is fast enough to easily keep up with Irene's flash sword, possibly the fastest specialized sword technique in the Claymore universe, and even comment on how Irene had gotten better with it.
Regeneration: All Claymore can regenerate injuries, even reattach severed limbs or missing eyes, by concentrating their youki on the area. As Teresa is an offensive type Claymore she does not have the capacity to completely regenerate missing limbs. She can attach another hybrid's severed limb to herself in place of her own original limb.
Sensing: All hybrids can sense the presence of youma and other hybrids, so much that the Organization developed a pill that completely suppressed a hybrid's youma to make them undetectable with the side effect that the hybrid would not be able to sense any youma.
What makes Teresa so much more powerful than the rest of the Organization's warriors is her unparalleled ability to sense youki. When any youma, hybrid, or other non-human being moves, attacks or accesses an ability, they manipulate the youki in their bodies. Teresa can sense exactly where this youki energy is being moved to within her opponent's body allowing her to predict her opponent's actions, allowing her to counter it perfectly. The only time she was hard pressed at all was when she was fighting Priscilla as Priscilla fought like Teresa did - using little to no youki.
Youki, the demon-like energy, is what grants hybrids and youma their super-human abilities. With the hybrids, they release controlled amounts of their youki to increase their abilities. A 10% release changes their eyes from silver to a glowing gold. A 30% release causes veins to bulge on their faces. A 50% release distorts their limbs and an 80% release pushes the hybrid past the point of control, forcing them to awaken and become monsters far beyond the youma.
Teresa has a tremendous amount of youki in her body. Though the other single numbers may surpass Teresa on an individual basis when it comes to strength, speed and agility, Teresa is a well-rounded package and is never seen in canon releasing more than 10% of her youki. When she killed Rosemary, an awakened former number one with power on the scale of an abyssal one, Teresa did so alone with only a 10% release. This is why Teresa is the most powerful Number One to have ever existed.
If present, how do you plan to tweak those powers to make him/her appropriately hindered in the setting of Landel's?:
Teresa's youki will be tremendously reduced in Damned. She will feel the need to eat more than once a week and she will feel fatigue and the need for sleep as much as any well-trained human. Because her youkai is reduced, her physical abilities will also be reduced. Since Teresa's raw physical abilities were individually not as good as the whole package was, her strength and speed will be dropped to the level of a trained human fighter. She will still be strong and fast, but not anywhere close to the inhuman powerhouse she had been when alive. Should she wish to release some of her greatly reduced youki to increase her strength and speed to an inhuman level, she can do a 10% release once a night and sustain it for five rounds.
Her regenerative abilities are also greatly reduced. Flesh wounds would heal in a few minutes once Teresa removed herself fully from combat and took a moment to redirect her youki to the wounds. More serious wounds, such as broken bones and torn ligaments would take one full day to regenerate (including the corresponding night). Severe wounds such as internal injuries would take a minimum of three full days to heal, upwards to five full days depending on the extent of the injury. In Damned, reattaching severed limbs would require her to hole herself up for the rest of the night and hold the limb in place while her body reattached itself. For the next three days, the limb would be quite weak as her body worked to return strength to it. Magical healing abilities from other patients will not aide in the reattaching of any limbs. While her body is in the process of regenerating a severed limb, no other regeneration is capable. All other wounds must wait until the limb is fully attached, after the three day period, before they can even begin regeneration.
Teresa's specialty, what really made her the best, was her sensing ability. It is also greatly reduced to the following levels:
Teresa can sense the presence of any other hybrids from the Claymore universe. She cannot pinpoint their location, but she will know when they are present in the general area. Should she end up getting into a fight with another hybrid, she will be able to barely sense the flow of youki in their bodies enough to avoid or counter a few blows, but not all of them. It'll be like a radio signal that goes in and out with static.
If Teresa is interacting with another patient that is, in any way, demonic in origin or has ties to demons, she will be able to tell. She won't know what they can do, as far as special abilities or strengths, but she will sense the presence of the demonic energy they possess or is lingering on them.
Unless attacked by a human, Teresa is unable to be surprised. She can't predict an opponent's actions and abilities anymore, nor will she be able to tell what the attack is going to be, but she will know something is coming.
Does your character have any other non-magical skills or abilities that we should know about?: Teresa has an impressive combat expertise varying from team tactics (which she rarely ever used) to weapon prowess to general hand-to-hand. She also displayed, when younger, knowledge of wilderness survival.
How about improbable appendages?: None at the moment, though she can normally reattach limbs that have been severed, including taking another half-youma's limb and attach it onto her body as if it was her own limb (assuming the original limb has been removed). Should Teresa awaken, it is likely she would have extra arms, wings, claws, tail or some other unusual limbs.