Smoke

Wizards who specialize in an elemental arcane school can further refine their studies by choosing a focused school.

Wizards who choose a focused school keep the bonus spells from their elemental school and must select an opposition elemental school as normal, but a focused school replaces some of the powers granted by their elemental school. Once a focused school is chosen, it can’t be changed.

Associated Schools: Air, fire.

Replacement Powers: The following school powers replace the lightning flash and cyclone powers of the air school and the fire jet and dancing flame powers of the fire school.

Smokesight (Su)

You can see normally through natural fog and smoke, as well as any fog and smoke that you (but not others) magically create. A number of times per day equal to 3 + your Intelligence bonus, you can touch another creature as a standard action to grant it this vision for 1 hour.

Body of Smoke (Sp)

At 8th level, you can assume a gaseous form (as per the spell of that name) as a swift action for a number of minutes per day equal to your wizard level.

This duration does not need to be consecutive, but it must be used in 1-minute increments.