It's a hand gun with a bladed base that she keeps clipped to her belt. It can extend into a full sniper rifle with a blade under it, making it a sword gun. She only shoots normal bullets from it at this time, as she can't afford any dust bullets.
She can increase the rate by which wounds heal with her aura. When used, it can cause small scrapes and bruises to heal within thirty seconds. Larger wounds, such as gashes and abrasions can take between one and five minutes to heal. Large wounds can take around half an hour heal, and serious wounds, such as life threatening injuries or broken bones, can be tended to in roughly an hour. Of course, this time does vary depending on the rate of healing that the person normally has. This semblance specifically works by the user adding their healing ability to another; for example, Ephie has higher than normal healing at a ten. Most people have between five and seven for their healing. If she healed a normal person, it would boost their healing by ten, and give them around 15 for the duration of the time. This addition of health plus the natural speed boost to healing given by Aura is what ultimately heals a person.
There are a few drawbacks to this, though. While healing, both the healer and the one being healed must be in constant physical contact. The user also places all of their natural healing ability and Aura onto the other person, meaning that they are incredibly weak and vulnerable while using this Semblance. In addition, healing takes a lot of energy, roughly 1% of Aura per minute of healing, meaning that they would run out of energy before healing most wounds.