Dota 2 Key anyone please?

[Melodikka]

Does anyone have a dota 2 key, I was reading on their website and it was saying that I had to have a copy of portal 2 on my steam account to even sync it up or something to create an account and download the client, I have been so baffled by this, does anyone know if there is any other way around it to try this game out? or if anyone has a beta key I would be greatly appreciative! might even give you cookies