L_Ender's Cataclysm Bosses

L_Ender's Cataclysm adds eight bosses with a boss bar and three mini-bosses, spread over the Overworld, the Nether and the End. This page belongs to the Bosses hub. Cataclysm is a NeoForge mod. It runs in Nytheria on Fabric through Sporran, Navrelis's fork of Kilt, made by the Sporran Team.

None of the Cataclysm bosses appears in the quest book, and Boss Ultimatum does not cover them. Their fights are optional challenges that the pack does not track. The mod's own advancement kill_all_bosses tracks them instead.

The eight boss-bar bosses split by dimension: Ignis and the Netherite Monstrosity in the Nether, the Ender Guardian in the End, and the other five in the Overworld. Sporran also runs the pack's Curios API and Lionfish API, which are separate NeoForge jars.

At a glance#

HP is the mod's built-in value ("code"). Every health_multiplier in the pack's Cataclysm config is 1.0 (all 19 entries), so the code value is what you meet. Nothing here was tested in play.

Ignis#

Ignis is the fire boss of the Nether, with 450 HP.

Where and how to start the fight#

The Burning Arena generates in the nether wastes biome. According to the mod code, you start the fight with the Altar of Fire and a Burning Ashes item. The Ignited Revenant, the mini-boss of the same arena, drops Burning Ashes.

The fight#

The facts give 450 HP and no behaviour. Cataclysm's own advancements include a kill_revenant milestone for the Ignited Revenant.

Drops#

Ignis drops an ignitium ingot and a music disc.

In the quest book#

None.

Netherite Monstrosity#

The Netherite Monstrosity has 600 HP, the most of the eight Cataclysm bosses.

Where and how to start the fight#

It stands in the Soul Forge, a structure that generates in the crimson forest, nether wastes, soul sand valley and warped forest. The structure data places it inside the forge, and no summon item is known. The mod's advancement find_soul_black_smith leads to the kill.

The fight#

Only HP is known: 600, unchanged by the pack's config.

Drops#

It drops an infernal forge, a lava power cell, a monstrous horn and a music disc.

In the quest book#

None.

Ender Guardian#

The Ender Guardian has 333 HP. Its mini-boss neighbour in the same ruin is the Ender Golem.

Where and how to start the fight#

The Ruined Citadel generates on the End highlands and midlands. According to the mod code, the Altar of Void spawns the guardian when a player is near, and it does not spawn on Peaceful difficulty. What item activates the altar was not decoded.

The fight#

The facts give 333 HP only.

Drops#

It drops the Gauntlet of Guard and a music disc. The Ender Golem drops a Void Core.

In the quest book#

None.

The Harbinger#

The Harbinger has 390 HP and lives underground.

Where and how to start the fight#

The Ancient Factory generates underground. The structure data places the Harbinger inside, and the mod's advancement for it reads "Wake and Defeat". How the Harbinger is woken was not decoded.

The fight#

Only the 390 HP value is known.

Drops#

It drops a block of witherite and a music disc.

In the quest book#

None.

The Leviathan#

The Leviathan has 400 HP and lives in the deep ocean.

Where and how to start the fight#

The Sunken City generates in deep oceans. According to the mod code, you call the Leviathan at the Altar of Abyss with an Abyssal Sacrifice. The Sunken City also holds the Altar of Amethyst and the Amethyst Crab mini-boss.

The fight#

The facts give the 400 HP value only.

Drops#

It drops an Abyssal Egg, Tidal Claws and a music disc. The Amethyst Crab drops its shell and meat.

In the quest book#

None.

Ancient Remnant#

The Ancient Remnant has 450 HP and rests inside a desert pyramid.

Where and how to start the fight#

The Cursed Pyramid generates in deserts. You dig the Remnant up from the suspicious sand inside the pyramid, according to the mod's advancement text.

The fight#

Only HP is known.

Drops#

It drops a block of ancient metal, a Remnant Skull, a Sandstorm in a Bottle and a music disc.

In the quest book#

None.

Maledictus#

Maledictus has 420 HP and lives in the Frosted Prison.

Where and how to start the fight#

The Frosted Prison generates in snowy plains. The mod's advancement is titled "Summon and Defeat", so the fight starts with a ritual. The exact ritual was not decoded.

The fight#

Only HP is known.

Drops#

It drops a cursium ingot and a music disc.

In the quest book#

None.

Scylla#

Scylla has 390 HP and lives in the Acropolis.

Where and how to start the fight#

The Acropolis generates in warm oceans. The structure data places Scylla there, and the advancement chain to her runs via the Clawdian, a structure mob that is not counted as a boss. The trigger that wakes her was not decoded.

The fight#

Only HP is known.

Drops#

She drops the Essence of the Storm, a Lacrima and a music disc.

In the quest book#

None.

Mini-bosses#

Three Cataclysm mobs count as mini-bosses in this wiki. They have no boss bar but sit in the mod's own boss code package.

• Ender Golem guards the Ruined Citadel and drops a Void Core. Cataclysm has a kill_ender_golem milestone for it.
• Amethyst Crab belongs to the Sunken City's Altar of Amethyst. It has 200 HP in the structure data; the exact structure was not decoded. It drops its shell and meat.
• Ignited Revenant belongs to the Burning Arena and drops Burning Ashes, the item that starts the Ignis fight. Cataclysm has a kill_revenant milestone for it.

Preparation#

The Cataclysm bosses are not covered by Boss Ultimatum, so its rule about healing a boss after repeated deaths does not apply to them.

Ability key#

The Cataclysm armour and items have four abilities: the main ability and one each for helmet, chestplate and boots. In the default pack all four sit on H, the shared ability key. Press and hold H to open the Polybind wheel and pick one. A quick tap repeats your last pick. The same key also carries abilities from Artifacts Remastered, the Twilight Forest and AdventureZ, which is why it opens a wheel. See Controls.

• Bring a second way to survive. A Totem of Undying works from an accessory slot with Charm of Undying (Fabric/Forge/Quilt). See Armor and accessories.
• The Netherite Monstrosity has the most health of the eight bosses at 600 HP, followed by Ignis and the Ancient Remnant at 450 HP each. Start with the lower numbers if you want a gentler first fight.

Good to know#

• Block damage. The pack's Cataclysm config sets "ignore mob griefing" to true for all eight boss-bar bosses. They can break blocks even if the mobGriefing game rule is off. The Ender Golem does not ignore the rule. Fight near your build only if you accept the damage.
• Structures. Cataclysm adds 15 structures to the pack, in the Overworld, the Nether, the End and one in the Otherside. The boss structures above are the ones that matter for this page; see Structure mods A to Z for the rest.
• Mobs. The mod has 39 mob types in total. Eight of them have a boss bar. Wadjet, Aptrgangr, Kobolediator and Clawdian are tough structure mobs, not bosses.

Notes#

• This page is deliberately thin on tactics. The facts record HP, structures, drops and summon items found in the mod's code and advancements, but not attack patterns. Nothing was tested in play.
• Not decoded: the item that activates the Altar of Void, the exact Maledictus ritual, and the triggers for the Harbinger and Scylla.
• Cataclysm has structure mobs that look like bosses but are not counted: Wadjet (150 HP), Aptrgangr (160), Kobolediator (180) and Clawdian (225). They have no boss bar, and the wiki does not list them as mini-bosses.

See also#

• Bosses - all 40 boss-bar bosses and 15 mini-bosses.
• The Nether - Ignis and the Netherite Monstrosity live here.
• The End - the Ruined Citadel and the Ender Guardian.
• Controls - the shared H ability key and the Polybind wheel.
• Twilight Forest bosses - the other group with no quests.
• Structures and dungeons - where Cataclysm's structures fit among the rest.