Let's look at the stock list: Revival Trance is a focused Graveyard deck: I count 19 cards that put creatures into the graveyard either through milling or discarding and 25 cards that care about your graveyard, mostly reanimation but a bit of other stuff too
Contains: 1 Whispers in the Well Booster Display
As a result of Magics overall power creep, Wizards of the Coast has been pushing a lot of equipment that offloads some of these downsides
The graveyard replayability is immensely helpful, but so are the great new sac outlets for lands: Exploration BroodshipExploration Broodship Evendo BrushrazerEvendo Brushrazer Eumidian WastewakerEumidian Wastewaker Really, I could go on and on about the brilliant design choices and how they employ the lands theme to brilliantly represent an alien species that terraforms
Villains (Black, Red, Blue) Final Fantasy is well-known for its iconic villains, and MTG put them to good use in this set as double-faced cards
Krenko, Mob Boss Krenko is king if you're looking for a Goblin Commander