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