Nightreign Nightlord Weakness Chart — All 8 Bosses (Patch 1.03.4, 2026)
In Elden Ring Nightreign (patch 1.03.4, June 2026), the Nightlord weaknesses are: Gladius — Holy; Adel — Poison; Gnoster — unconfirmed; Maris — Lightning; Libra — unconfirmed; Fulgor — Bleed; Caligo — Fire and Bleed; and the final boss Heolstor — Holy. A dash (—) means the value is not confirmed in-game and should not be assumed.
This is the one-screen reference for every Nightlord’s elemental weakness, main resistance, and difficulty (1–5). Each boss links to its full phase-by-phase guide. Values are current as of patch 1.03.4; unconfirmed values are shown as ”—”.
Weakness, resistance & difficulty (all 8 Nightlords)
Section titled “Weakness, resistance & difficulty (all 8 Nightlords)”| # | Nightlord | Weak to | Resists | Difficulty |
|---|---|---|---|---|
| 1 | Gladius, Beast of Night | Holy | Fire | 3 / 5 |
| 2 | Adel, Baron of Night | Poison | — | 4 / 5 |
| 3 | Gnoster, Wisdom of Night | — | — | 4 / 5 |
| 4 | Maris, Fathom of Night | Lightning | — | 4 / 5 |
| 5 | Libra, Beast of Balance | — | — | 4 / 5 |
| 6 | Fulgor, Knight of Night | Bleed | — | 3 / 5 |
| 7 | Caligo, Mist of Night | Fire + Bleed | Frost | 4 / 5 |
| ★ | Heolstor the Nightlord (final) | Holy | Bleed | 5 / 5 |
Quick reads from the chart
Section titled “Quick reads from the chart”- Holy is the most broadly useful damage type — it’s the weakness of both the first Nightlord (Gladius) and the final boss (Heolstor).
- Easiest Nightlords: Fulgor and Gladius (difficulty 3). Fulgor folds quickly to Bleed.
- Hardest: Heolstor (5/5), then the Everdark rotation of Caligo — bring Fire, avoid Cold/Frost builds (Caligo resists Frost).
- Unconfirmed weaknesses (Gnoster, Libra): the game does not clearly expose an elemental weakness; treat these as “bring balanced, reliable damage” rather than chasing an element.
How to use a weakness
Section titled “How to use a weakness”Matching a boss’s weakness mainly boosts stagger/poise damage and DPS uptime — it is not a one-shot button. Pair the element above with the build notes on each boss page, and check the character tier list for who delivers that damage type best.
Sources
Section titled “Sources”- Per-Nightlord guides on this site (linked in each row), patch 1.03.4 testing
- Nightlord overview and Heolstor immunities (this site)