M15 Spoilers:The Chain Veil

Magic: The Gathering has always been telling us a story. How much of that story gets through to us in just the cards themselves has always been a struggle that Wizards of the Coast has had to deal with because, let's face it, a stack of cards that people can arrange anyway they choose isn't the ideal medium for a deep story. But the newly spoiled Legendary Artifact here is definitely looking to change all that, and possibly shift the game in a very new direction. Meet the MacGuffin of M15, The Chain Veil.

I know it's a lot of text, but trust me, you want to
know what this does, because it's nasty.

So let me break down these seven lines of text for you: You must use planeswalkers every turn, and in return for doing something you were going to be doing anyway if this card is anywhere near your deck, you get to activate two loyalty abilities per walker per turn. Two. Every turn. That turns the clock on most ultimate abilities from 3 or four turns to two. Two! Our new buddy Garruk, Apex Hunter for instance. Assuming you've gotten this on the table the turn before he hits, you can kill your opponent's walker and create a beast to block, (a beast that'll kill any attacker, by the way) and next turn you've got one more beast and have signed a death sentence for your opponent with a shiny new emblem.