Full list of all 21 Duels of the Planeswalkers achievements.
The base game contains 12 achievements, and there are 3 DLC packs containing 9 achievements.
Win a game
Deal 20 combat damage to a player in a single turn in a game
Increase your life total to 30 or more in single player, or 60 or more in Two-Headed Giant
Complete a challenge
Win a Two-Headed Giant game
Defeat someone who has earned the Spellslinger achievement
Win 5 ranked matches
Defeat Tezzeret in the final single-player campaign battle
Complete all challenges
Defeat Tezzeret & Sarkhan Vol in the cooperative campaign
Win 10 online matches
Unlock 100%
Defeat Nicol Bolas in the single player campaign (Expansion 1)
Control creatures with a total power of 75 or more (Expansion 1)
Earn Puzzling Master and complete all Expansion 1 challenges
Win a 3- or 4-player match (Expansion 2)
Put 8 lands onto the battlefield in one turn (Expansion 2)
Defeat Sorin Markov in the single-player campaign (Expansion 2)
Deal 12 combat damage to an opponent in a single attack with one blue creature
An opponent's last permanent leaves the battlefield
Defeat Sarkhan the Mad in the single-player campaign (Expansion 3)