Trade Battlefield 3 Pre Order Key and other games for Dota 2 Key :)

Hey guys

I think name stands for itself. I have several keys from different games. I would trade many of them for Dota 2 (edit. Steam acc or Key). Here is a list of games that are indipendently from steam. (Sorry for bad English)

Mount and Blade Warband
Battlefield 3 Pre-Order (Key isn't out jet)
Battlefield Bad Company 2
Battlefield Vietnam (Add-on to BC2)

Please contact me if there is any chance to get a Dota 2 key
I love this game and I played Dota (Wc3) a very long time.

Greetings
Roma

*Edit
got scammed!