Sin, Spiras Punishment Sin, Spira's Punishment could be fine top-end for a self-mill deck that utilizes mechanics like delve or cards like Relic of Progenitus to sculpt the graveyard and give them plenty of control over what you get back
Still, the ones that are effects youd usually want anyways like Stump Stomp and Waterlogged Teachings are the cream of the crop
Not only do you get new planes for Planechase, a pack with the potential for wildly expensive art variants, great lands for every deck, but more than ever you are getting at least two decks worth of replay value with each purchase
A well-balanced thickness of a playing card improves durability, prevents tearing, and makes dealing cards smoother
The Demon synergy adds an extra layer of power, turning it into a life-drain engine if you can keep a Demon on the board
But having seen the ease with which Standard and Pioneer decks can reliably cast these tremendous threats on (or even ahead of) curve, it seems colored mana no longer fulfills its traditional role as a deck-building restriction
