Crystal Guardian

Location Crystal Peak
Health 280
450 (Enranged)
Reward/s Geo
Mask Shard

Crystal Guardian is a Boss in Hollow Knight. Bosses are special Enemies that feature their own arena, a large amount of health, and a variety of unique moves and abilities. You will need to perform multiple attacks such as using The Nail and Nail Arts along with the Spells and Abilities in order to defeat them. Some bosses are capable of entering into a state of stagger after landing a number of attacks on them.

As soon as you encounter a boss, its name will appear on the screen, the music will change into a boss battle theme, and usually,  paths connecting the arena will close or will be blocked leaving you no choice but to face these devastating and unique foes.


Heavyset miner of the Crystal Peak overcome by crystal growth. Can discharge blazing beams of light from its crystallised limbs.

How does the world look to this creature, gazing out from within its crystal prison? Does it see only light? Is that what drives it into a frenzy?


Crystal Guardian Location


Crystal Guardian Rewards



Crystal Guardian Strategies

Strategy Writeup

To start this fight, you'll find the guardian sleeping on a bench. Simply strike it to initiate the battle. The Crystal Guardian may keep you on your toes since it will frequently call forth a rain of crystal beams and mixes its movement and tactics making itself unpredictable.

Charms: If at the early stage of the game you accidentally initiate the battle, it is recommended to at least have the Dashmaster charm in order to evade and move around the arena at a quicker rate. Quick Focus will also allow you to cast your spells at a faster rate allowing you to keep up with the pace of this boss. Quick Slash is also useful to have equipped to quickly land your attacks since the Crystal Guardian is always open to take damage while it uses its laser beam attack.

Spells and Abilities: Using any offensive spell on the Crystal Guardian will work, but it is wise to take note of equipping certain charms like Shaman Stone and Spell Twister in order to improve the effectiveness of your spells. Upgrading the Mothwing Cloak to the Shade Cloak is also recommended in order to phase through the boss' attacks.

When facing the Crystal Guardian, it is a good practice to take your time and watch out for where the beams from the sky are directed. Take your time to move your position and once it uses its laser beam attack, jump over to get behind it and follow up with attacking it with The Nail. Your spells can also work like Vengeful Spirit allowing you to inflict damage from afar as well as Desolate Dive or Descending Dark will allow you to inflict damage while avoiding its attacks.


Attacks & Counters

Attack Counter
First Encounter
Beams from Above The Crystal Guardian will shout out a loud cry where multiple beams of energy will shoot down from above. To identify where it will land, the beams will start off as a thin line and after a short moment will open as a crystal beam that deals damage upon contact. The Crystal Guardian can perform this move while performing other attacks.
Crystal Laser Blast This is the Crystal Guardian's primary attack. The Crystal Guardian will lean back and raise its hand to shoot out a laser blast towards The Knight's direction. Similar to how the beams from the sky work, it begins with a thin line and after a short moment will enlarge into a blast that deals damage upon contact.
Leaping Guardian The Crystal Guardian leaps around the arena as its way to move around the area and to avoid The Knight's attacks. This move can be performed in conjunction with its two attacks.
Second Encounter (Enranged Crystal Guardian)
Beams from Above This attack is similar to how it works at the first encounter, the only differences are the Crystal Guardian now stomps on the ground violently while screaming, the color has changed from pink to orange, the beams are faster, and it deals 2 masks damage upon contact.
Crystal Laser Blast Also similar to how it worked at the first encounter but is now channeled faster, deals more damage, and the color has changed from pink to orange.
Leaping Guardian Performed at a much faster rate and uses it aggressively in conjunction with its two attacks.



Crystal Guardian Lore

The Crystal Guardian was once a normal bug working as a miner. As time passed, eventually its work has consumed its mind by losing itself, mutated its body by being covered in crystal, and succumbed to The Infection. What the Crystal Guardian sees behind its crystallized head is unknown.


Crystal Guardian Notes & Trivia

  • The Crystal Guardian is one of the bosses that can be fought twice. At first, you will find it resting on a bench and after defeating it, it will jump up onto the second level of the area. You will need to have the Mantis Claw and Monarch Wings abilities in order to reach the second arena of the boss.
  • If you have Defender's Crest equipped, the cloud surrounding The Knight will cause the Crystal Guardian to wake up from the bench, triggering the boss battle.



Broken Vessel  ♦  Brooding Mawlek  ♦  Brothers Oro and Mato  ♦  Dung Defender (Boss)  ♦  Elder Hu  ♦  Failed Champion  ♦  False Knight  ♦  Flukemarm  ♦  Galien  ♦  God Tamer  ♦  Gorb  ♦  Great Nailsage Sly  ♦  Grey Prince Zote  ♦  Gruz Mother  ♦  Hive Knight  ♦  Hollow Knight  ♦  Hornet (Boss)  ♦  Lost Kin  ♦  Mantis Lords  ♦  Markoth  ♦  Marmu  ♦  Massive Moss Charger  ♦  Nightmare King Grimm  ♦  No Eyes  ♦  Nosk  ♦  Oblobble  ♦  Paintmaster Sheo  ♦  Soul Master  ♦  Soul Tyrant  ♦  Soul Warrior  ♦  The Collector  ♦  The Radiance  ♦  Traitor Lord  ♦  Troupe Master Grimm (Boss)  ♦  Uumuu  ♦  Vengefly King  ♦  Watcher Knight  ♦  White Defender  ♦  Winged Nosk  ♦  Xero  ♦  Zote the Mighty (Boss)


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    • Anonymous

      This boss does not reward you with a mask shard. The ENRAGED guardian does, and you need the monarch wings to access that boss fight after this one.

      • Anonymous

        He can be killed on the bench with the defenders crest alone. Just let the stink aura hit him without aggroing him and he will eventually die without having to actually fight him

        • Anonymous

          How does this boss have 450 HP? By that logic, 10.5 strikes from Great Slash with Coiled nail should kill it, but I’ve gotten him up to 13 strikes, all Great Slash, some Cyclone, and he is not going down! Does he have resistances?

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