Here is the full list of all 15 Ember Strike achievements.
Train a party to level 10!
Win your first PVP match!
Beat the mini boss to unlock PVP!
Train a party to level 3!
Get your fifth minion!
Train a minion to level 3!
Convince Agnar to join your team!
Fight with two minions!
Learn to fight!
Defeat Fang and save the Village!
Beat the raging orc!
Defeat Chairman Bao and save the valley!
Beat Chief Little Hands!
Defeat the Conjurer!
Win a PVP match with Fang!