The only thing I know about MtG is that Phyrexia was a cool concept. 

However, Lavanya being in a pocket dimension rocks! That's going to make the whole lovecraftian angle flow so much more easily. And the gate is in the Pacific. We're like Cthulhu's neighbors. Frankly, I'm surprised that eldritch abominations aren't a more common occurrence in this world. But then, maybe they are and the wiki is misleading.