This card is awesome! To start, it's a better (albeit a tad more expensive) Index, which is already a great card if you want to stack your deck. But, the big difference is that this card is essentially "Pay 1 life: Scry 5". I know, I know, it's a case of "all or nothing" with those 5 cards, but that's what it essentially is! The most powerful scry card right now is Cryptic Annelid, and it can easily turn into "look at the top 3 cards of your library". It also helps that this card is cheap at only 2 mana and it is one of the only cards in black that let you rearrange the top cards of you library (the others being Diabolic Vision, Dimir Machinations, Fill with Fright, and Lost Hope). Really, it's a card that has been lost to the ages (I've never seen one in play at any tournaments or in casual play) and needs to be brought back. Screw reprinting Door to Nothingness twice (Planechase and M13); give me a reprint of this!
Pros: Black rearrange, repeatable, cheap
Cons: "All or nothing" with the rearrange