Here is the full list of all 9 Stained achievements.
You are the true heir of this stained kingdom
Key for the giant bat door
A weight less to activate pully
Smash glass creature with sound waves
Has a disarming disposition
Push Enemies away by shattering near them
Regenerate health over time
Cleaves enemies with minimum effort
Smashed Clock boss without dying single time. You have become the real stained smasher.