[H] Batman Arkham City (GOTY), others [W] Dota 2 TREASURE Keys

I'm looking to trade:

Batman Arkham City GOTY - 5 Keys

Darksiders 1 - 2 Keys

Sim City 4 - 2 Keys

Note that I am looking for the treasure keys that unlock chests in Dota 2, not gifts of the game.