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