Here is the full list of all 14 Beasts Battle achievements.
Earn all stars.
Go Ridge Hero of a mage on Hard difficulty.
Complete the game for both races.
Go Ridge Hero of a warrior on Hard difficulty.
Lose 200 mana.
Complete the game in any race.
Try hotseat mode.
Lose the 2000 health.
Apply 2000 magic damage.
Apply 15000 physical damage.
Complete 10 levels in any race.
Apply 5000 physical damage.
Spend 10,000 gold.
Complete 5 levels in any race.