What is a Battle Deck?

Battle Decks are 60 cards Magic the Gathering pre-constructed decks designed and sold by Card Kingdom. 

Each Battle Deck is built around a specific draft archetype or card combination. They are intended for casual play and are generally balanced to play against each other.

When you buy a Battle Deck you're not buying a specific and pre-defined list of cards but rather a play experience. The composition of each BD varies over time due to card availability and, because of this, Card Kingdom do not publish deck lists on their site anymore. The lists you find here are just examples from my own collection or retrieved from people who shared their lists online. 

Card Kingdom normally issue a couple of new BDs every month.

So, how many different Battle Decks do exist and what kind of variety do they offer?