I don't know whether Arca wants this to be in any way hard science, but I think both of those pseudo-scientific bullshit "physical traits" are covered by no psi powers.
I think hard science pretty much died in the wake of non-human species. So'ki's magnetic abilities, if you bother to make a connection, are damned similar to the electric shock abilties of an eel (I was briefly considering this). Arc also said:
I think I can actually make decent use of the electromagnetic thing though...
But I will make a few additions / edits to my profile:
Name: So'ki Ti'lia
Age: 78.6 Alsu'fu years, approximately 23 Earth years.
Birthplace: Xi'ka'l (Mesu 7)
Universal ID: ASF-567-250-769-958
Species skills: Electromagnetic manipulation
Occupational skills: Biology, computers, some piloting skills
Species data: The Alsu'fu are an advanced race, with a highly intricate and tonal language, almost impossible for humans to learn. The Alsu'fans are short (~3 ft tall, ~60 lbs), furred creatures with almost comically large eyes and head. Their eyes, however, are piercing and bright, and their round heads hold a large brain. Although their size makes them slow to run, they jump well and think fast. Their muscles contain a special bio-metalic material that, when triggered by specialized nerves, creates a temporary electromagnetic field strong enough to allow the lightweight Alsu'fans to cling to thick metal surfaces, like a refrigerator or metal I-beam. They regularly use this to pick up small metal objects. Measurements indicate that the electro magnetic field is slightly weaker than that of a neodymium magnet. Problematically, their magnetic skills weaken considerably at any temperature above 100 degrees Fahrenheit, which was never a problem on their colder home planets, but becomes a liability when working in warmer Terran environments.
Their dense fur is soft as silk and covers everything but their faces, feet, and hands. Tiny muscles allow the fur to move like rippling water or tuft up in spikes, another device used to convey linguistic information besides speech. Males of the species are larger and stronger, while females tend to have more precise magnetic control. They are very social and speak Terran fluently (a simple language compared to theirs), but hate violence and none of them carry firearms, although many have multipurpose blades the size of paring knives.
Character data: So'ki is reserved, tends not to react to crisis situations, and is definitely not fast on her feet. She is small, even for her species, but she says it just affords her better magnetic control. She usually carries a 6-inch blade and a woven utility belt, apparently something she made for herself as a child on Xi'ka'l ( a cold planet, but managable for the furred Alsu'fans).
Physical appearance: Alsu'fans are about 3 feet tall at the most, furred (see previous about fur), and lightly muscled. To the average human, they might resemble a cross between a skinny dwarf and a monkey, but they have expressive eyes and have finer muscle control than primates. Their fur ranges from golden brown to dark brown to blue. So'ki has gold fur. She likes fish, fruit, the color blue, and long walks in the moonlight couldn't resist
Something similar to these guys I found on a book cover at my local bookstore yesterday (except larger, and possibly a little less cute):