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