Alara Reborn booster pack contains 15 cards per pack. The distribution is 1 rare, 3 uncommon, and 11 commons. A mythic rare occurs in aproximately 1 in 8 rare spots. Released on April 30th, 2009, Alara Reborn is the Third set in the Shards of Alara block. The set contains 145 black-bordered cards (10 mythic rares, 35 rare, 40 uncommon, and 60 commons).
Alara Reborn (codenamed Scissors) is a Magic: the Gathering expansion set which was released on a Thursday to take advantage of a holiday in Europe. The pre-release date was April 24, 2009. Alara Reborn is the third set in the Alara block, following Shards of Alara and Conflux.
Alara Reborn follows the new publishing standards set by WOTC in Shards of Alara. That is, mythic rares are included in one out of every eight packs. Intro packs contain 41 cards and one booster pack, and replace preconstructed theme decks. Its tagline is, "The birth of one world. The death of five."
Alara Reborn is the first set in the history of Magic the Gathering to consist entirely of multicolored, or "gold", cards (cards which require mana of more than one color to play). It expands on the mechanics, themes and flavor laid down in Shards and Conflux, but creates new combinations of creatures under the influence of more than one shard, such as coloured artifact creatures from Esper that have the Bant ability Exalted.
This set continues on the Shards of Alara set's Exalted, Unearth and Devour mechanics, as well as the Shadowmoor and Ravnica blocks' Hybrid Mechanic. Cards using the Hybrid Mechanic in this set lack the usual hybrid card border colors as they include a third color outside of the hybrid colors.
It has also brought about the new mechanic called Cascade - When you play this spell, remove cards from the top of your library from the game until you remove a nonland card that costs less. You may cast it without paying its mana cost. Put the removed cards on the bottom in a random order.