Name every move with @ in play. Tiers match ranks: Novice, Adept, Master, Legendary or Forbidden. Nonlethal-first is a principle under pressure, not a joke and not a mechanical lock.
NOVICE
@Air Blast — The basic push. Disarm, knock back, snuff a small flame, clear a path.
@Air Shield — Deflects projectiles and gas. Roku used air to hold back volcanic fumes on the mountain. Students who only think of air as 'the gentle element' should remember that.
@Staff Glide — Glider staff travel. The staff is identity, tool, and, in some Fire ports already, a thing that gets you watched.
@Enhanced Lightness — Leaps, safe falls, silent steps. Everyday temple movement as much as a combat form.
ADEPT
@Air Spout — Vertical travel. Famous later as an Avatar image; masters can train it now.
@Air Funnel / Suction — Disarm, pull, snuff flames, or, at the edge of ethics, steal breath. Teachers argue about how honestly to describe that last use to students.
MASTER
@Mini Tornado — Control and area denial, a master's weather in a small space.
@Asphyxiation Wind — Lethal. Temple teaching usually forbids it. Later history will show that air can kill in a last stand. Using it in 12 BG is a moral event, especially for a people about to be hunted.
UNLOCKS AND LATER ARTS
@Air Scooter — Not yet invented (a later Avatar will invent a sphere of air for travel). A PC may invent a similar form. Mark it as a discovery, not as a standard temple toy.
@Spiritual Projection — Later seen in a rare air master after deep spiritual training. Not a student trick.
@True Flight — Requires extreme detachment or a spiritual change in later canon. Not a temple standard. Do not give every Elder a hover.
CULTURE OF THE ART
The four temples are one people and four arguments. Gyatso, already a moral center of the South, teaches kindness and will lie about a test result if he must to protect a child. Sister Disha, very old, still hates teaching detachment as indifference. Master Youdron has long supported working with other nations' elites to help more people, and now fears the temples are too thin. Khandro's Guiding Wind rejects being ornaments for kings. Elder Yeshe in the West is already preparing unused halls as hiding places 'just in case.' Elder Jamyang gave a Fire 'diplomatic' team the wrong bison count.
Air Nomads in this era are the world's mediators and disaster-relief corps. They are not already 'the last airbenders.' Play their strength, their humor, their thin numbers, and the fact that a census of children and bison is already interesting to the wrong people. Almost all Air Nomads can airbend; everyday jobs (cook, landing attendant, caretaker) are still airbender jobs. Nonbender pilgrims and vendors live at temple-foot villages and hostels, not usually as monks.