DO NOT BUY IT!!!!!!!!!!!!!
It has almost none of the features from Magic 2014 and earlier editions. Instead of being able to change a deck mid campaign you are "locked" into the deck you selected after the tutorial. The only way to change a deck is to build a new one through campaign, but you have to win to do that, so if you do what I did which is Blue/Red (Water/Fire), it will be extremely frustrating.
No 2 Headed Giant
Slower Gameplay
No Custom Duels
Slow Menus
Slow Interface
The Steam reviews are also spot on and can be found here:
http://steamcommunity.com/app/255420/reviews/
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From someone else I know:
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I knew about the microtransactions ahead of time, but I looked at it and said "$40 for a MtG game with fully featured card collection and deck-building? Seems worth it to me!"
Wow, was that a mistake. I've played all the past DotP games, and their UIs were always subpar, but this game takes it to a while new level of shittiness. Everytime you hit a button on a menu, you have to wait like 5 seconds while it plays an agonizingly slow transition graphic. And the menu is so confusing, you have to hit like 3-5 buttons to go somewhere (say, the deck editor), and then if you want to leave you have to go BACK several times to reach the main menu, and then click several times more to go where you now want to go and OH MY GOD IT'S SO SLOW JUST KILL ME NOW. Seriously, who the hell thought this was a good idea?
On top of that, there's tons of small things that they managed to totally break. For instance, by default, you just click a card to play it and the game automatically selects which lands to tap to play that card. Generally speaking, in past games this worked just fine for 2-color decks as the game chose which to tap rather intelligently, but they added an option that let you manually choose just to be safe.
In Magic 2015, it's like they intentionally changed the automatic tapping to troll everyone who purchases the game. If you have, say, 2 black and 2 red mana, and have two cards in your hand that both cost 1 red and one colorless, and you just click one to play the card, it will TAP BOTH YOUR RED MANA. So now you can't play the other card.
And it does this CONSTANTLY, so now every time you want to play a card you have to hover over it for several seconds until it lights up which lands it intends to tap, then hit the toggle lands button until a combination of lands that isn't totally fucking dumb lights up, and THEN play the card. Every. Single. Time.