In a world that is all but a carbon-copy of our own, through means no one quite knows how, people started developing superpowers. Studies have been done to try and figure out why these people gained powers, but, nothing seems to differentiate these empowered people from regular ones. There’s no extra gene, visible mutations in their body, or anything else on a biological level to differentiate these extraordinary people from regular humans.
One of these super-powered humans has the power to manipulate, and turn into, smoke. They can turn their entire body into a thick cloud of smoke that they can use to fly while still having awareness of there surroundings, turn parts of their body into smoke to avoid attacks, and even channel smoke through their palms, or from their surroundings, and launch it as an attack that can damage cars. In addition, they can also absorb any smoke into their own body, that they themselves did not create, and can use it both as a minor strength boost, now able to punch through brick walls when their not a cloud, and even heal any damage they suffered.
This power does have limitations, though. For one, the person can only use turn their smoke form for half-an-hour a day, as in they can’t turn into smoke once they exceed this limit, such as if they turned into smoke for five minutes, and much later turned into smoke again, they only have twenty-five minutes left to use their smoke form, although they can still use their other smoke powers. The person can also only absorb so much smoke, say the amount a group of large buildings on fire would produce if left uncheck, before they start feeling nauseous and come close to collapsing from a massive headache, and it's not helped by the fact the person in question hates smoking and absorbing the smoke feels like gurgling a mountain of lit cigarettes.
What would be the required secondary powers needed for this power to function as described above, assuming they can use this power in ways that utilize every bit of its potential, and avoid causing harm to the person’s body?