Elden Ring Nightreign: All Boss Weaknesses

In Elden Ring Nightreign, you will need to take down a number of different bosses and mini-bosses while out in the world. The bosses, or Night Lords, that you have to battle are based on the expedition that you choose before setting out on your run.

Each Night Lord in Elden Ring Nightreign has a different combination of weaknesses and status effects that are useful to defeating them, and you will want to know all of these before heading into battle. This will allow you to better navigate the map in search of weapons and items with those weaknesses attached.

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All Boss Weaknesses Chart for Elden Ring Nightreign

Below is a chart containing each of the Nightreign Night Lords and their reactions to each of the elements and damage types. If the number is 0, that boss will take a normal amount of damage from that source. If the number is negative, it will take less damage than normal, and if the number is positive and bold, this means that it is a weakness for that Night Lord. For example, Fulghor takes normal damage for everything except Lightning and Holy damage; it takes increased damage from Lightning sources and decreased from Holy.

Boss Name	Standard	Slash	Strike	Pierce	Magic	Fire	Lighting	Holy
Adel						-20%	-50%
Caligo		-15%	+15%	-10%	-20%	+35%	-20%	-20%
Fulghor							+20%	-30%
Gladius				+10%		-50%		+35%
Gnoster Land	-10%	-20%	+20%	+10%	-10%	+35%	-10%	-10%
Gnoster Moth	+15%	+25%	+15%	+25%	-50%	+40%	-10%	-10%
Heolstor Phase 1		+15%	-10%	+10%		+20%		+35%
Heolstor Phase 2		-10%	+10%	+15%			+20%	+20%
Libra		+10%			-20%	+20%		+35%
Maris		+15%	-20%	-10%	-20%	-50%	+40%	-15%

Elden Ring Nightreign Hardest Nightlords Heolstor Night Aspect 2

According to Twitter user @darksouls_2ch, the chart below is for how much of a certain type of status effect must be added to the bosses the first time before it takes on that status effect. For example, Adel in the Gaping Jaw boss fight requires 154 poison before it becomes Poisoned. If there is no number, it means that specific Night Lord is immune to that status effect.

These numbers are just for the first time that the boss gets the status effect. Subsequent attempts to fill these meters will require more and more amounts of them to trigger the full effect on every boss in Elden Ring Nightreign.

Boss Name	Poison	Scarlet Rot	Bleed	Frostbite	Sleep	Madness
Adel	154	154	541	154	154	–
Caligo	252	252	252	541	541	–
Fulghor	154	154	154	154	154	–
Gladius	541	252	252	541	154	–
Gnoster Land	252	154	154	154	154	–
Gnoster Moth	541	154	154	154	541	–
Heolstor Phase 1	–	252	–	–	541	–
Heolstor Phase 2	–	252	–	–	541	–
Libra	154	154	252	252	–	154
Maris	–	252	–	252	–	–

Elden Ring Nightreign

9/10

Released: May 30, 2025
Multiplayer: Online Co-Op
Number of Players: 1-3
Steam Deck Compatibility: Unknown
PC Release Date: May 30, 2025