The host and the sword

With the added line about the darkins being the weapon, not the body, I realized something that i haven't even though before. It probably has been said a lot of times already, but I think that the reason why Aatrox massacred Tryn's clan and left him alive and full of rage was in order to get a new, stronger vessel than the one he is parasiting already, that seems a bit slim and weak in my opinion. But if the greatsword is the Darkin, and it can use any host it wants, wouldn't it be better a incredibly strong barbarian used to carrying greatswords already, and that is so full of rage and bloodlust that can evade death for a while? Tryndamere is just the perfect body for the demon of War. He even got a skin about it called Demonblade!.

Another question is then. The beautiful creature that killed Vayne's parents in front of her, was her another darkin breeding a optimal host in the future? this time full of vengeance and bloodlust instead of rage

I doubt any of this ever make a difference if it ends up being real, but at least it could be a legendary skin for aatrox, one where it is possessing trynd's body