After multiple hours of xbox 360 xbox one and a few on PC, I must say this game has matured. (skip ahead if you dont intend to have DLC) If you have got the expansion, grinded all the cards and have the 5 free update packs, you have a variety to play with and can evem make a strong mono-color deck, maybe a tri-color deck. Options are more viable now. Even with all the cards unlocked things can be a little difficult, but a deck may be crafted that comes out ontop and if cards are put together properly i feel that the game can be taken to new heghts, If you plan on paying 15$ for the game, you will have lots of fun. It especially helps when you fight the last boss (garruk) twice and if you restart you have to play both of them all over.
For those who dont buy the DLC you still have some options, Tri-decks will not be nearly as viable though, so if you prefer to stay in the dual deck range you are fine, decks made without dlc interference will be a little more rigid, but you can still craft something from the battle packs you unlock and the 5 free update packs. Again, it will be rigid, but sometimes it can be okay to be rigid, some of the cards in the DLC will never find a place in my deck, but boiling soup is a pain in the butt if Griselbrand or a Dragon is on your field. Note: this is still difficult to play if you dont buy dlc, however using the free update packs may help, I refuse to pull an IGN and say "give them your money" the game can be difficult, annoying and you may want to throw something, I got angry with it before DLC came out but i will have a rating down below.
2015/2014: 2015 increases versatility, we dont have people running around with a crappy samurai deck nor a supra eldrazi deck, it isnt impossible to win games and have fun.
2015/2013: 2013 in my opinion was my favorite, the decks were all balanced so anyone could win no matter what deck people were playing, but in this game we see a little unbalancing issue, there are many ways around it since it is a deck builder and we can have any number of decks (from what i can see) but some cards from some colors are just too powerful to ignore.
2015/2012: 2015 is a miraculous improvement, 2012 simply gave us a better version of 2010.
2015/2010: the original game that started the series has faded, and in many ways I could say that both have very positive attributes, while two-headed giant is gone, i still have fun absolutely destroying my friends, and i enjoy fighting mirror matches on practice mode. however 2010 had more options for a dual, you couldnt edit decks as much as the other iterations but you could change the life amount, hand size (and for some who dont know there was a "revenge" version of nicol bolas for his original deck in 2010 that you could play against in 2-headed giant which was insane) all of this changed the way the game felt.
If 2014 were a 10/10 this game would be a 7.65/10 (I argued with myself on this one...)
if 2013 were a 10/10 this game would be a 6/10
if 2012 were a 10/10 this game would be a 11/10 (vast improvements that made it better than the best possible product)
if 2010 were a 10/10 this game would be a 10/10
Overall the game w/ DLC is a 7.5/10 (this refers to how much i wanted to keep playing and had fun)
without DLC this game is a 5/10 (in my opinion it really does add that amount of flavor but you might think differently if you play it the base game was good enough for me to play through but not replay over and over like after the updates and expansion)