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