Fissure In The Fog Boss Guide (Caligo)

Caligo, Miasma of Night is Nightlord of the Expedition, Fissure in the Fog, and players can attempt it immediately after the Tricephalos Expedition, where they fight Gladius. This massive icy dragon is one of the easier Nightlords to deal with at first glance, but compared to other dragons in Elden Ring Nightreign, Caligo is far more aggressive and punishing if players aren’t prepared.

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All Elden Ring Nightreign Bosses and Mini-Bosses

This complete Elden Ring Nightreign boss list details every boss in the game according to their locations.

This guide offers information on the boss itself, covering Caligo’s key attack patterns, phases, and how players can strategize to defeat him efficiently in Elden Ring Nightreign.

Caligo, Miasma of Night Overview In Elden Ring Nightreign

Attack	Image	Attack Description
Claw Swipes		Caligo uses its claws to swipe at the player twice.
Ice Breath		The boss lowers its head, lets out an icy breath, and moves its head to cover a wide arc.
Downward Breath		Caligo stands up on its legs and breathes ice aimed toward the ground. This ice covers a large area.
Icy Gale		The boss squats and closes its wings before releasing an ice attack from both wings.
Icy Disc Descend		Caligo disappears into the fog, and after a few seconds, a large disc-shaped ice attack drops down from the air.
Foggy Gush		The boss disappears into the fog, and large ice structures form around the arena before it releases a gush of ice that travels a very long distance.
Tail Slam		Caligo powers up its tail and slams it down on the player.
Impenetrable Frost		The boss begins channeling icy winds around itself, marking the start of the second phase.
Crystal Flight		Caligo starts flying around the arena, releasing small crystal projectiles that target your location. It circles the area a few times before landing and firing more projectiles.
Enhanced Tail Slam		During the second phase, most attacks cause glowing ice orbs to spawn. The boss can then use its tail slam to detonate them and deal damage.

Caligo, Miasma of Night Weaknesses

Caligo’s primary weakness is Fire damage, which causes him to stagger after taking a certain amount of it. Luckily, fire weapons are not hard to come by, and there are multiple locations—such as Greater Churches and Encampments—where you’ll have a higher chance of finding one. Since all locations are randomized, there’s a chance no Fire location will spawn during your Expedition. In that case, you can equip a Relic as a precaution, one that makes your starting armament deal Fire damage.

A guaranteed Fire Relic is the Night of the Beast, which you get by defeating Gladius.

Aside from Fire, you can also go for Bleed, which is effective since the boss can be inflicted with Blood Loss, dealing significant damage. Some Nightfarers, like Executor, start with a katana, giving you access to Bleed from the beginning.

Elden Ring Nightreign: All Castle Bosses & Layouts

The central castle is a dangerous but incredibly valuable location to visit in Elden Ring Nightreign, with several possible enemy and boss types.

General Strategy For Fissure in the Fog In Elden Ring Nightreign

Almost every attack the boss uses deals Ice damage, which means your Frostbite bar will start to build up. The ideal distance to fight the boss is medium range. This keeps you close enough to rush in if it starts breathing ice in an arc, while still being far enough to react to the downward breath and Icy Gale.

Caligo has a habit of disappearing after losing a bit of health, covering the entire arena in fog. This hinders your vision, and you can only locate your teammates by their name tags. This fog phase signals one of two possible attacks. If you start to hear ice crackling above you, the boss is about to drop a disc-shaped ice attack that covers a very large area. In this case, you can either run away from the boss or rush toward it—the latter gives you a chance to deal damage while it’s still channeling the attack.

The second fog attack is triggered when you spot a black visual trail moving toward the boss. When this happens, follow the trail and take cover behind the various ice structures to avoid the ice breath Caligo unleashes, which covers a large portion of the arena. After losing 50–60% of its health, the boss starts channeling icy winds around itself, and the music changes. This marks the beginning of the second phase, where you’ll need to watch for ice shards on the ground that slow you down and increase Frostbite buildup.

When the boss starts flying and fires crystals at your location, you can run to the side or dodge repeatedly. Each projectile doesn’t deal much damage individually, but it’s best to avoid getting hit by multiple.

How to Find the Secret of the Mountaintop In Elden Ring Nightreign 10

If you manage to get the Mountaintop Shifting Earth event, you can complete it and acquire the power at the top, which halves Frost buildup and Frostbite damage. This makes the already easy fight with the Nightlord much more manageable, and you won’t have to worry about your Frost buildup as much. The power also grants bonus attack power when you inflict Frostbite on the boss, but that will be irrelevant in Caligo’s case.

Best Team Composition For Caligo In Elden Ring Nightreign

The team composition for Caligo mainly depends on the ability to dish out Fire damage and inflict Bleed on the boss as much as possible. In this case, Wylder is the top pick, primarily due to his two Relics—one that spreads fire after activating his Ultimate, and another that allows a follow-up attack after using his Ability, which is a Fire Greatsword strike. If you have the Relic that grants two uses of his character skill, Wylder can move around the arena freely and consistently follow up with fire attacks, even without a Fire-based weapon.

The second pick for the fight is Executor, as you can equip the Relic that makes his starting armament deal Fire damage. This enables you to proc Bleed while also dealing Fire damage to the boss. His Cursed Sword also allows him to avoid taking damage if the parry is successful.

The third pick is Recluse, due to her high damage output and her ability to utilize both her own Fire spells and other Nightfarers’ Fire damage to enhance her Magic Cocktails. You can also consider bringing Raider for his Ultimate, which helps avoid projectiles and creates a protective zone, but including him depends on who you’re willing to swap out.

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How to Find & Use Wraith Calling Bell In Elden Ring Nightreign

Wraith Calling Bell is a reusable item in Elden Ring Nightreign. Here’s how players can find it across different locations in Limveld.

Rewards For Beating Fissure in the Fog In Elden Ring Nightreign

After you defeat Caligo, Miasma of Night, and complete the Fissure in the Fog Expedition, you will get a bunch of Relics, Murk, and the Night of the Miasma Relic, which grants the following effects:

Nearby Frostbite Conceals Self
Changes compatible armament’s skill to Chilling Mist at start of expedition.
Attack power up when facing frostbite-afflicted enemy.

This is easily the best Relic to have if any Night Boss or Nightlord you’re going to face can be inflicted with the Frostbite Status Ailment. Whenever Frostbite procs nearby, you’ll get an increase in attack power and become concealed, meaning the boss will target the other Nightfarers instead of you. However, not every class can make use of the second effect, as the skill Chilling Mist can only be applied to a few starting armaments.