Eighth Edition might sound like a weird name for a game expansion. However, this is not a game expansion it's a Core Set, and more precisely the Eighth Edition (8th Edition).
The Eighth Edition marked 10 years since the release of the Magic: The Gathering trading card game. This release comes with 5 theme decks, all featuring one color. Life Boost found here was assigned the (technically non)color white. All the decks have a single color each.
Blessed Reversal, an Instant card, and Glorious Anthem, an Enchantment card, are the 2 rare cards in this deck. You'll also find a strategy insert in this deck.
Life Boost Decklist: