Assuming you're playing a bunch of Dragons, defeating the battle shouldn't be a problem since you'll have a bunch of big evasive creatures, although there probably will be times when it's better to just hit your opponent's face and then try to burn them out with the front side of Invasion of Tarkir rather than flipping into another Dragon that dies to a wrath
Rather than going for the usual suspects like The Ur-Dragon or Tiamat, why not take a look at a hybrid dragon-aristocrat-reanimator approach
That said, it does have Exile synergy, and your opponents wont get to discard what they dont play
The Saga mechanic from the upcoming set Dominaria seems like a great mechanic, but creates a new visual layout for the card the text box is over the card type, for example while it makes it more unique it also adds cognitive noise
[9] The backgrounds of Base Set cards utilizes either real photos, 3D graphics, and hand-drawn art, many of which were sourced from a collection of stock images called Datacraft Sozaijiten