Quite some time passed since I won the DotP expansion. I was incapable of downloading it in order to play it. But I was looking forward to it, because when Innistrad was out and new cards were added to DotP 2012 the game became really awesome. The games started to be good and fun and sometimes it even felt like playing constructed (still too far away).
Core sets are usually pretty dull and there's not much of interaction. What I liked in DotP is the little info about synergy, speed etc of your deck. That at least let me avoid decks I don't like at all. I finished the game with monowhite lifegain but that's not my kind of deck. I beat Bolas with a mill deck otherwise I wouldn't stand a chance, or at least playing aggro seemed pretty useless against Bolas's Cruel Control. Mill on the other even without any unlocked cards was a perfect choice!
Now with Return To Ravnica we get new decks for the game and there are new - multicolored - decks. There are cards from five guilds in Return To Ravnica - Azorius (UW), Selesnya (GW), Izzet (UR), Rakdos (BR) and Golgari (BG). One guild represents two colors...Each new deck in this expansion represents one of the guilds.
Azorius deck - Aura Servants - is build around Enchantments. The most interesting card in this deck is Sigil of the Empty Throne that let's you put a 4/4 angel token in play after you play an enchantment.
Golgari deck (Sepulchral Strength) - is build around sacrificing creatures and using them to your advantage (usually meaning ruining your opponent's plans via Grave Pact or Blood Artist). The deck's most annoying creatures are Mortivore which can get really big and can regenerate and Spiritmonger that can also be pretty big and it is also pretty difficult to get rid of it. There's some ramp in the deck so you cast big creatures earlier and a lot of good removal. The deck has Pernicious Deed main deck and Maelstrom Pulse that can just hit anything (ok, not a land...).
Players that choose Izzet have the chance to play with Niv-Mizzet, the Firemind. This card is so good - it deals damage to the opponent and it draws cards - everything a control deck needs. This deck has some really wierd creatures and quite a lot of burn effects. To be honest I don't like this deck much. I would expect more counterspells and more cards like Electrolyze or Prophetic Bolt (that do something and draw cards).
Rakdos (Grinning Malice) on the other hand has some nice cards. There are discard effects and cards that destroy creatures. This deck's aim is to kill what stands in its way, to discard threats and to deal additional damage via other cards like Lyzolda
Selesnya (Collective Might) just tries to overrun you with a lot of tokens and creatures and it can gain some life as well. There are cards that create tokens and cards that can make them bigger. It can either kill in one attack via Overrun or simply by shear number of the creatures.
As with any other deck you can unlock other cards and tune your deck. Promotional unlocks are much better and there are really strong cards and good old time's staples and even nowadays ones from Magic: The Gathering. This expansion brings life to the relatively dull game (compared to DotP 2012 which was way better in my opinion.) The expansion comes with 10 add-ons for single player campaign (5 for each) and new challenges. There are other small things you might enjoy like new personnas and new set of achievements but well, that's not something I'd pay for.
Overall this expansion makes the game better but still it lacks compared to the previous one + its expansion. I'd still say that it is worth the money though. I had lots of fun with this game while playing multiplayer mainly.