Tactical gameplay, you have to outplay your opponent, actualliy piloting the deck matters! the player matters much much more than the deck.
the distribution model is great! (except in core ) you can get all the cards super cheap, with playsets!
great deckbuilding, picking any card you want, grid,movement, the cards much the flavor
each mage is unique with his own strategies
the art is nice, i dont like the flavor text on many cards , and sometimes the game can take too long, but that's the only things i dont like in MW