Airbending (This creature has flying and "{W}, {T}: This creature gains hexproof and loses all other abilities until end of turn.")

{W}{U}{R}{G}: Transform Aang. Activate only if Aang has has firebending, waterbending, earthbending, and airbending.

Indestructible, double strike.

{W}{U}{R}{G}: Target creature you don't control loses all abilities. (This effect lasts permanently)