The set also includes two scene boxes: Heroes United and Villains Unleashed
Usually airborne and powered by White mana, these divine beings are a force to be reckoned with once you get them on the table
Other great inclusions are: Soul's FireSoul's Fire as way to deal damage without sacrificing our commander, and Chandra's IgnitionChandra's Ignition as a way to kill everyone (hopefully)
Fleshwrither is the only transfigure card as of now, and it's not likely to return
Where its at its best is on turn one helping you cast a ton of mana rocks, your Tymna, or a Rhystic Study, or slightly later, maybe on turn three, where it helps you double or triple spell some of your most impactful (but more expensive) cards
Ruin Crab is a one-mana creature that mills your opponent for three whenever a land enters the battlefield under your control