Time Spiral features 301 cards, plus 121 special "timeshifted" reprint cards from Magic’s past, with randomly-inserted premium cards. All cards, including the timeshifted cards, are tournament legal. The set includes 121 commons, 80 uncommons, and 80 rares, plus the 121 timeshifted cards with their own rarity. It will be available in booster packs, theme decks, tournament packs, and Fat Packs.
Starting with Time Spiral, there has been a change in how premium cards are distributed. Previously, premium cards replaced a card of the same rarity, so a premium rare would replace a standard rare, a premium uncommon would replace a standard uncommon, and a premium common would replace a standard common. In Time Spiral and in future sets, all rare, uncommon, and common premium cards will replace a standard common instead. It is now possible for there to be two rares in one pack: the standard rare card plus a premium rare (which replaces a standard common).
Time Spiral Cycle, Book 1
by Scott McGough
The planeswalker Teferi at last returns to his home plane only to find it devastated and barren. Time itself is fracturing, and it's up to Teferi and his companions to find a way to halt the collapse.
It won't be easy when his allies are poised to turn against him.
To learn more, go to the Time Spiral book product page.