On top of that, it also has two additional modes, letting you snipe your opponents graveyards while generating advantage
Granted, it's at sorcery speed instead of being able to do it on someone else's turn to start off a Storm combo with a bit of a boost, but in all likelihood it's still going to do more for you in a mono-black build than a simple Dark RitualDark Ritual will, for the same mana cost
Players planning on running white would be wise to grab it in their draft
However the core strategy of the deck, walking the opponent into an expensive play, locking him with Winter Orb, and generating progressive tempo with Quirion Dryad on offense was compelling to the point of irresistibility
Rakdos Adventures: An aggro deck with a lot of reach and the potential to grind, but the manabase leaves a little to be desired