When we take a glance at Innistrad, it has some strong similarities when compared to two custom blocks from the Wizards Community. (And I just want to add that I really love this forum. I've been to another certain forum that hosts custom card creation, and personally, I hate it there. Wizards Community is like home to me. And I would imagine the Wizard's staff takes good care of it's own; over those who indulge elsewhere.)
Innistrad looks a lot like Mythgard (mine) and Broodwar (stinkyjoeterry's) custom blocks. Some of the shared concepts are Vampires and Werewolves both being core creature types. If you take a look at the symbol on the double-faced cards, it's a lot like Mythgard's set symbol (sun and moon).
When I first began to develop Mythgard, the art I used for Dracian was art from the D&D expansion Ravenloft. The art was of the boss vampire "Strahd". Despite this strong conspiracy element, I personally believe Innistrad represents Broodwar a little more than Mythgard. In any case, because of these similarities, one might be lead to believe that Wizards copied us. I would bet, their plan was to upstage us. Well, if so, how well did they do; or did they fail? I can't personally compare Broodwar to Innistrad, so let's take a trip back in time and glimpse Mythgard for a second/third time.
How do they work?!
Wizards never really does explain it! And neither does mythology. However, where they have failed us, I have pulled through. And it's a pretty realistic explanation. Vampires are the product of a biological weapon, a virus. This virus accelerates cellular productivity; granting various elements of evolutionary abilities. (hyper regeneration, psionic power, amplified strength) However, it has a fatal flaw to its benefits; the cells of an infected individual lose the ability to maintain it's integrity (produce energy, cellular division, etc) because the body can't produce plasma fast enough to provide for the increased cellular productivity. So, the cells begin to break down and feast on themselves in an attempt to fuel the demand and maintain their integrity. A very torturous end. This can be prevented if the infected regularly gets a very concentrated supply of plasma (which contains hemoglobin). The hemoglobin feeds and fuels the cells; enabling them to maintain their integrity and hyper productivity. And that's why they need to drink blood! Another side effect to the virus is that the virus can cause random mutations. Transforming some of the infected into hideous monsters.
Wow! I might now have your attention, so if I do, allow me to redirect it to the design and development of the Vampires in Mythgard. I'm going to sblock the designs and label them based on their own personal center of attention (design/development wise). You'll see that I used several themes to create lots of strategy/deck theme options. I created stand-alone designs that not only work well in a limited format, but also very well in the macro verse of the game. And also, created a foundation for the designs with an imaginative flare and strong flavor reinforcement. (This is a game that plays on imagination if I recall correctly.) So the player's can get a perfect mental picture of the Nosophoros and their every behavior. Let's see how much you guys can deciper; and what easter eggs you can find hidden throughout it all.