Here is the full list of all 69 Hero Academy achievements.
Resurrect an opponent's Ninja, Wraith, Chieftain, or Annihilator with the Shadow.
Debuff three enemies in one turn with a Poisoner.
Lower an enemy's maximum health by 250 with a Monk.
Hit three targets with a single Windblade attack.
Win a game with the Shaolin Team.
Heal three allies with a chained Shaman heal.
Attack a single enemy with three different heroes in one turn.
Hit four enemy heroes or crystals at once with a single Grenadier attack.
Win 25 games.
Win a game by destroying the enemy's crystals.
Stomp two enemy heroes in one turn.
Take all day to put in your turn after your opponent does.
Win a game with the Tribe.
Win a game with the Dwarves.
Get a Paladin to heal herself.
Shield a crystal with an Engineer.
Resurrect and fully heal a knocked-out ally in a single turn.
Win a game with the Dark Elves.
Submit 100 turns.
Hit an enemy target at maximum range with the Sniper.
Hit three enemies at once with a Void Monk's attack.
Pull an enemy off an assault tile with an Impaler.
Knock out three enemy heroes in one turn.
Complete the Tutorial.
Taunt an opponent.
Win a game with the Team Fortress team.
Add Runemetal, Dragonscale, and Shining Helm to a single Knight.
Win a game by destroying the enemy team.
Win a game against a random player.
Hit three enemies at once with a Heavy's attack.
Have an Engineer equip three allies in a single turn.
Link a Medic to a Heavy.
Knock out a full-health enemy with one shot from an Archer.
Use an assault tile to do bonus crystal damage.
Hit three enemies with a single attack by a Wizard with a scroll.
Submit five turns.
Knock out an enemy.
Use the undo feature and try something new.
Submit a turn less than three minutes after your opponent moves.
Win a game with the Council.
Do 2000 or more damage with a single attack.
Destroy two enemy crystals in a single turn.
Win a game and take no crystal damage.
Win 100 games.
Do 2500 damage or more with a single Ninja attack.
Win 50 games with the Council.
Weaken three enemies with the priestess in a single turn.
Raise two Phantoms in a single turn with a Necromancer.
Build up a max-health Wraith.
Win 50 games with the Dark Elves.
Hit three enemy heroes or crystals at once with a single Gunner attack.
Knock out three enemies at once with an Annihilator shot.
Win 50 games with the Dwarves.
Execute two enemies in one turn with a Warrior.
Hit three full-strength enemies in one turn with an Axe Thrower.
Do 1000 points of damage with a corpse explosion.
Damage five targets with one Chieftain attack.
Win 50 games with the Tribe.
Knock out two enemies at once with the Pyro.
Win 50 games with the Team Fortress team.
Complete all Meet the Council challenges.
Complete all Meet the Dark Elves challenges.
Complete all Meet the Dwarves challenges.
Complete all Meet the Tribe challenges.
Complete all Meet Team Fortress challenges.
Win 50 games with the Shaolin Team.
Removed an enemy hero's buff and a friendly hero's debuff in the same turn with a Taoist.
Complete all Meet the Shaolin challenges.
Complete all Challenge Collection challenges.