On Innistrad you might find yourself in the misty woods, a forbidding manor, or a haunted cemetery
Instead, it has you choose a creature type when it enters the battlefield and makes all of your slivers and nontoken creatures that creature type
The concept of the card is interesting, practically equivalent to a Momir Vig of lessons
Learning about it, learning to spot value cards when you find them, learning what collectors are looking for, learning to anticipate changes in value in different cardsall of these things just come down to your knowledge level
This means that unofficial, fake cards can be common
Their front mimics a comic-book cover, while their reverse displays panels that deliver the cards keywords and abilities in speech bubbles