Here is the full list of all 97 Just King achievements.
Defeat a boss using at least two lv3 Cyclopes.
Defeat a boss using only Mythic heroes.
Defeat the coliseum rulers
Defeat a boss using at least two lv3 Medusas.
Swat the one that bit you.
What best adapts to changes.
Sculpt faster than sound
Get in touch with a distant relative.
Defeat the Shadow King with King.
Gift it with the hug of the great mother.
Feed the green.
There is no quality material nowadays.
Get rid of something important.
Get a potion in the middle of the festival.
Be yourself.
Guarantee the party's security.
Show some of your faith during a tense moment.
Impress them with your "luck".
Win a combat without dealing damage with heroes.
Fight for a noble cause.
Use advanced hunting tactics.
Defeat a boss using at least two lv3 Ronins.
Concentrate to use your full power.
Defeat a boss using at least two lv3 Onis.
Defeat a boss using only Yokai heroes.
Defeat the creature controlling the Bloodmoon.
Reach 10 armor only with items on a hero.
Find a treasure that wants to be found.
Get hurt by using too much force.
Slide very fast for a long distance.
You need at least a PhD to blance magic and physics like that.
Ice is not always the answer for everything.
Find an old missing tree.
You can't catch up with nature.
Defeat a boss using at least two lv3 Druids.
Defeat a boss using at least two lv3 Huntresses.
Defeat a boss using only Woodlander heroes.
Defeat a boss using only Deep heroes.
Defeat a boss using at least two lv3 Deep Cultists.
Feed it.
Defeat a boss using at least two lv3 Sharkmancers.
Defeat the creature that stole the Throne of the Deep.
Reach 200% Haste and 300% Heal only with items on a hero.
Gift of the high rank.
Defeat a boss using only Cold heroes.
Defeat a boss using at least two lv3 Vikings.
Reflect on your limitations.
Perform a heroic move!
Running is sometimes a good option!
You must become a fighter!
A spear-sized baguette.
Now you see it, now you don't!
Be the center of attention.
Peace! Says the philosopher.
Reach 200% Damage and 4 Armor only with items on a hero.
You gonna need a lvl3 Cleric.
Alleys too narrow to aim.
Be defeated by nana on node 1.
Defeat a boss using at least two lv3 Frost Witches.
Try to protect everyone without much success.
Defeat a boss using only Frenzy heroes.
Show off your power!
Play a song with your soul.
A helmet forged by great blacksmiths.
Defeat a boss using only Protagonist heroes.
Defeat a boss using only Hot Hands heroes.
Cause 666+ damage in a single hit.
Defeat a boss using only Shady Business heroes.
Gotta run fazt.
Get fair pay for your work.
Equip an Captain lv3 with Forgotten Banner, Chaplain's Pauldron and Shattered Saber.
Defeat a boss using only Strategist heroes.
Defeat the boss with at least 2 Captains at lv 3 each.
Pat the pettable ones.
Get a rare seed.
Defeat the boss only buying Clerics and items.
Defeat a boss using only Heavenly heroes.
Give Enzo tools to free himself.
It's on fire!
Defeat the creature in the Mountain's Castle.
Make a foolproof plan.
Defeat the creature that oppresses Trumwood.
Get a MvP with Cleric lvl3.
Win an Elite combat.
Upgrade one hero to lvl3.
Win your first node combat.
Win a combat without taking damage.
Create a whirlwind of jaws
Grow every kind of Krasis to its maximum potential
Defeat the Undead War God with max Red Trophies.
Defeat the Lightning Party God with max Blue Trophies.
Participate in the Dreekmocatic system.
Remember your kelp roots.
Find the right weapon to defeat your foes.
Defeat the gods without ever gaining any Red or Blue Trophies in a run
Say prayers for each of the forgotten ones at the shrine.
Defend your thesis!