The Magic 2013 Expansion Add-on for Magic: The Gathering - Duels of the Planeswalkers 2013 has 5 achievements worth 50 gamerscore.
Win a duel with exactly 1 life
Win a duel on Xbox LIVE using an Expansion deck
Win a duel controlling at least five Auras
Win a duel controlling at least twenty creatures
Defeat the Sepulchral Strength deck in the revenge campaign