Avatar: The Last Airbender Eternal-Legal (!TLE) 

Legendary Creature - Human Avatar Ally 

4/4 

When Aang enters, airbend another target creature. (Exile it. While it's exiled, its owner may cast it for 2 rather than its mana cost.) // Whenever one or more creatures you control leave the battlefield without dying, you get an experience counter. // At the beginning of your upkeep, create a 1/1 white Ally creature token for each experience counter you have. 

Tomoyo Asatani