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