About Darkins

So with the new champion, it has been confirmed that Darkin are weapons that act like parasites, instead of being fully capable entities in their own right.

Now that we have that question answered we now have A LOT more questions due to how it was answered.

How do Darkin come into existence?

As weapons they obviously have no reproductive capabilities, which leaves the obvious question of how they come into being (or rather came into being). Are they the result of mass slaughter being committed with a weapon causing the weapon thirst for more blood? Or are they the result of a demon being sealed away in a weapon? Possibly a horrible mistake with an overload of shadow magic? Or could they be weapons made by a godsmith that were never meant to be used unless no other choice was available? We may never know, but we do know that they can't reproduce in a regular fashion.

Where does this absurd power they offer come from Darkin are incredibly powerful, capable of making one man be able to turn the tide of a war, or kill an entire tribe alone, but they also (or at least in Aatrox case) can inspire that very same blood thirst that their owner possesses into everyone who they choose to receive it. (It's why Tryndamere is the way he is, and why the soldiers whose side he fought for were powerful but not the enemies who witnessed it.) Is a power like this unique to Aatrox and the others simply offer other powers on a similar scale of ridiculousness? And more importantly, what gives them this power? The power to make someone able to REBUKE death, when Kindred aren't exactly a couple of slackers when it comes to their work, Is incredible. So does that mean the other Darkin possess other powers on a similar scale or the exact same and more importantly, how did someone or something make something or acquire a power capable of making others defy death?

How do the Kindred take to their existence? Kindred are serious about their work, well, lamb is anyway. So they can't be happy about a power like that, nor can they be happy that there are living beings that are nearly completely unable to die (You can probably only kill a Darkin by throwing them somewhere where the weapon they inhabit will be completely destroyed.) Not to mention the issues in war they create, I imagine war as rush hour for the Kindred, as they are in a constant state of having to claim marks, But when all of the sudden, half of your marks disappear completely as they are unable to die currently, that has to not be something that makes them happy.