Here is the full list of all 10 Decks & Daggers achievements.
Destroy 4 enemies in one fell swoop.
Finish a level with only 1 health left.
Destroy a 20 enemy.
Buy the Scimitar weapon from Bartholos.
Eat 4 Dung Fly Enemies in a Myrth Moss level.
Save Lily the Water Sprite.
Become the King of Trorin.
Create a 15 weapon.
Help Grognak the Troll to find a Dire Wolf.
Defeat the Collector.