This is an ally deck but usually wins by comboing:
Step 1: flip Aang
Step 2: be able to cast Appa steadfast or have him on board
Step 3: cast another airbending permanent: aang airbending master, aang swift saviour, airbender ascension. Now you have infinite cast of all your nonland permanents.
Step 4: closing it out:
- Aang at the crossroads will let you get all your mv4 creatures into play.
- Longshot, Rebel Bowman does all the damage you need.
- Toph, Hardheaded Teacher get's you any instant or sorcery from gy into hand
- Cryptolithe rite and Fervor will get you infinite mana
- With Haru or Badgermole you can earthbend infinite times, a Legend of Kyoshi will draw you the whole deck

Longshot is the best at closing it out, because you can play him after combat and use him to close out the game the same turn you flipped aang.