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