Here is the full list of all 48 Voice of Cards: The Isle Dragon Roars achievements.
Defeated the Dragon's lingering hatred in the Vexing Cave.
Collected all item cards.
Collected all key item cards.
Obtained Mysterious Card 7.
Obtained more than 50,000G.
Obtained Mysterious Card 4.
Began a game using saved data carried over.
Completed Chapter 7.
Reached MAX LV with one character.
Obtained Melanie's strongest weapon.
Obtained Mysterious Card 10.
Obtained Mar's strongest weapon.
Obtained Bruno's strongest weapon.
Won the battle against the mysterious knight.
Obtained the protagonist's strongest weapon.
Obtained Ridis's strongest weapon.
Won the battle against the island hermit.
Collected all skill cards.
Completed Chapter 6.
Obtained Mysterious Card 9.
Obtained Mysterious Card 8.
Completed Chapter 5.
Completed Chapter 4.
Completed Chapter 3.
Saved up the maximum amount of gems.
Obtained Mysterious Card 6.
Obtained Mysterious Card 5.
Completed Chapter 2.
Won a round on Include All at the game parlor.
Obtained Mysterious Card 3.
Completed Chapter 1.
Played at a game parlor for the first time.
Won a round on Simple at the game parlor.
Obtained Mysterious Card 2.
Struck foes with elements they are weak to thrice in a single battle.
Defeated all enemies without taking any damage.
Obtained Mysterious Card 1.
Unlocked all achievements.
Viewed all endings.
Completed your collection.
Collected all equipment cards.
Collected all character cards.
Collected all enemy cards.
Successfully fled a battle.
Witnessed the game master fall asleep.
Learned a new skill from a suspicious doctor.
Won a round on Add Skills at the game parlor.
Won a round on Add Events at the game parlor.