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