# L2 Hostility

***Note: These mechanics and recommendations are subject to change due to ongoing ATM: Arcana Balancing with the L2 system.***

## Introduction

L2 Hostiles adds an adaptive difficulty system where mobs become **stronger** and gain special **abilities** (Traits) based on **player progression** and location. It aims for a **more dynamic** and **challenging** experience compared to vanilla or mods like Champions, Scaling Health, or Infernal Mobs, featuring player-specific difficulty scaling and mechanics for creating safe zones. [For information in the curios specific for L2Hostility click here.](/guides/all-the-magic-arcana/curios-and-relics.md#hostility-curse-slot)

## Understanding L2 Difficulty & Mob Levels

L2 features an adaptive difficulty system. Mobs gain levels, Traits, increased health, and increased damage based on several factors. You generally won’t encounter high-level mobs with powerful traits early on.

* \*\*Mob Level Factors:\*\*A mob’s level is determined by:
  * The dimension it’s in.
  * The biome it’s in.
  * Its exact position (distance from origin/spawn).
  * The **difficulty level of nearby players**.
  * The entity type (some mobs have base level adjustments).
* **Player & Chunk Difficulty:** Difficulty is tracked per-player and per-chunk section. Killing mobs increases these values; dying decreases player difficulty.
* **Mob Equipment:** Higher mob levels can also affect the equipment and enchantments mobs spawn with (primarily applies to vanilla mobs using vanilla equipment).
* **Checking Difficulty:** Use the `Hostility Detector` item or check the `Difficulty Information` tab in your inventory/player screen to see the difficulty level of your current location and your personal difficulty.

![Difficulty Information Tab](/files/d8567965f1be6ac80417e3de9b613d0424c00961)

### Ways to Increase Player Difficulty

* **Kill Mobs:** The primary method of gaining difficulty.
* **Drink a Cursed Bottle:** The **most efficient** way to quickly raise difficulty, giving **+50 levels** per bottle consumed.
* **Wear Difficulty Curios:** Equip specific Curios that grant bonus of +50 difficulty levels. The currently available options are shown below:

![Curios For Difficulty Increase](/files/249bc6452f006efd94b0578713da079b051f75f1)

*(Note: From left to right: `Curse of Envy`, `Curse of Greed`, `Curse of Lust`, `Curse of Warth`)*

![Abyssal Thorn](/files/1abea9804972342f723c7f90ecae665f1354a2fd)

*(Note: `Abyssal Thorn` can only be wear in the `L2Hotility - Curse` curios slot while the other 4 can go in the `Charm` slot)*

* **Visit New Dimensions:** Entering dimensions for the first time can increase difficulty giving a +2 lvl of difficulty for each dimension. Most of the dimensions will add a multiplicative of 1.5x of you current level allowing to mobs to reach a maximum level of 3000; in the overworld this multiplicative vary between 1x and 1.5x.
* **Travel Far from Origin:** Moving a significant distance away from the world spawn point increases difficulty.
* **Explore High-Difficulty Areas:** Visit biomes or dimensions that inherently possess a higher base difficulty rating.

### Ways to Decrease Player Difficulty

* **Die:** Player death reduces difficulty (ensure the `keepInventory` gamerule is `false` for this to apply).
* **Drink a Bottle of Sanity:** The **most efficient** way to quickly lower difficulty.

![Sanity Bottle](/files/8fc226bef0277cb4b616532d3fd4a75da3636073)

* **Use a Hostility Orb:** Creates a localized safe zone (chunk section) around the orb where difficulty is permanently nullified, preventing high-level mobs from spawning there. To use it, equip `Detector Glasses` and hold the `Detector Glasses` in your off-hand while placing/interacting with the `Hostility Orb`.

![Using the Hostility Orb setup](/files/c45f6509a04e6d8128de6aa8808edc2116decdf9)

* ~~**Wear Difficulty Nullifying Curios:** Equip specific `Divinity Light` that force your difficulty rating to 0.~~ (Currently unobtainable due to the required trait `Killer Aura` being disabled by default).
* **Wear Difficulty Maintainer Curios:** Equip the `Curse of Sloth` to prevent gaining further difficulty levels from most sources.

![Curse of Sloth](/files/c6844d57bc077a1333285682822a30abdba74c1c)

## Expected L2 Progression Path

This outlines the general steps expected for progressing through L2 content:

![Looting Charms](/files/15715bc15741c1a8925ffbef584dc6353f85908c)

*(Note: From left to right: `Unpolished Looting Charm`, `Magical Looting Charm`, `Chaotic Looting Charm`, `Miraculous Looting Charm`)*

{% stepper %}
{% step %}

#### Craft the **Lv.1 Looting Charm**

`Unpolished Looting Charm`.
{% endstep %}

{% step %}

#### Use the Looting Charm to obtain vanilla materials not typically available in the Overworld

Use mob drops to obtain vanilla materials not typically available in the Overworld.
{% endstep %}

{% step %}

#### Craft the **Lv.2 Looting Charm**

`Magical Looting Charm`.
{% endstep %}

{% step %}

#### Collect `Cursed Droplets`

Kill mobs that possess specific Traits (`Adaptive`, `Cursed`, `Erosion`, `Corrosion`) to collect `Cursed Droplets`. Alternatively, burn mob drops in fire/lava for a low chance to obtain droplets (`Nether Stars` have the highest chance at 1/64 - check JEI/EMI for details). You can do the same automation setup as the one showed below for the `Hostility Essence`.

![Cursed Droplets](/files/364b57647f896d2c91b4ca09d00ab39d9324df50)
{% endstep %}

{% step %}

#### Craft a `Bottle of Curse`

Craft a `Bottle of Curse` using Cursed Droplets.

![Bottle of Curse](/files/15aed43d61095344a489a03f11a5104672e10d1c)
{% endstep %}

{% step %}

#### Obtain `Captured Wind`

Obtain `Captured Wind`. Craft `Wind Capturing Bottle`, get at least a `Novice Spell Book` from **Ars Nouveau** (higher tiers spellbooks and gear is recommended to have more mana), and create a spell like `Self -> Launch -> Amplify x3 -> Glide` *(Note: you need to be gliding to it to work)*. Spam this spell with empty bottles in your inventory to fill them.

![Wind Capturing Bottle](/files/7c98f64d6e855fb67f087a89c1ff73447be661c3) ![Ars Spell For Wind Bottle](/files/cd074416628427fd7f7a1e1a96549dedcb1e3d8d)
{% endstep %}

{% step %}

#### Craft a `Chaos Ingot`

![Chaos Ingot](/files/976e43d1611ec00208f2fd16751df5ed04d20b9e)
{% endstep %}

{% step %}

#### Craft the **Lv.3 Looting Charm**

`Chaotic Looting Charm`.
{% endstep %}

{% step %}

#### Craft the `Curse of Envy`

Equipping this enables mobs to drop **Trait Symbols** corresponding to their traits.
{% endstep %}

{% step %}

#### Continue killing mobs to collect specific **Trait Symbols**

{% endstep %}

{% step %}

#### Use Trait Symbols as crafting ingredients

Use Trait Symbols as crafting ingredients for better gear and potentially other L2 items.
{% endstep %}

{% step %}

#### Craft the `Curse of Gluttony`

This provides a more sustainable source for `Bottles of Curse`.

![Curse of Gluttony](/files/ad7107919731e1b8a9e838e393d3cfb8ad2803cb)
{% endstep %}

{% step %}

#### Burn `Bottles of Curse` to obtain `Hostility Essence`

Burn `Bottles of Curse` in lava/fire to obtain `Hostility Essence`. The chance is low (1 in 512), so automation is recommended. Example: A `Barrel` feeding bottles onto a **Create**`Chute` over lava, with a **Sophisticated Storage**`Barrel` + filtered `Magnet Upgrade` nearby to collect the essence.

![Hostility Essence Automation Example](/files/4701381c0405e45863ccb8c6d33b56f9230200e2)

![Magnet Upgrade filtered to only accept Hostility Essence](/files/d71071801a89c4fc3b195f505ee26cce99c8658c)
{% endstep %}

{% step %}

#### Craft a `Miracle Ingot`

![Miracle Ingot](/files/024bcfe6bcc333d13b4f22a27af7547f0391c8a5)
{% endstep %}

{% step %}

#### Craft the **Lv.4 Looting Charm**

`Miraculous Looting Charm`.
{% endstep %}
{% endstepper %}

*Note: You can equip multiple **Looting Charms** and **Curses** simultaneously to benefit from all their effects at once.*

## Recommendations & Strategies

*Note: Enchantments from L2 Hostility can often be crafted using materials obtained via the Looting Charms.*

* **Essential Enchantments:** Prioritize obtaining the `Hardened` (mitigates `Corrosion`/`Erosion`) and `Insulator` (reduces `Repelling`/`Pulling` force) enchantments.
* **Damage Types:** Focus on dealing `Magic` or `Abyss` damage types, as some traits resist physical damage (e.g., `Reflect`, `Dementor`). Be aware of the `Adaptive` trait, which allows mobs to gain resistance to damage types they’ve taken recently.
* **Potions & Magic:** Utilize potions and magic systems effectively (e.g., **Ars Nouveau**, **Iron’s Spellbook**). ~~`Cursed` potions/weapons are needed for the `Undying` trait~~ (but `Undying` is disabled by default).
* \*\*Helpful Gear/Items:\*\*Consider using items such as:
  * `Flame Thorn` (from **L2Hostility**) combined with magic damage wands (from **Glimmering Tales**).
  * `Imagine Breaker` (from **L2Hostility**).
  * Abyss weapons (from **L2Weaponry**).
  * `Void Touch` enchantment (from **L2Complements**).
  * `Detector Glass` (to see invisible mobs).
  * The various **Curio items** added by **L2Hostility** (28 total!) offer significant boosts and abilities.
  * `Hostility Detector` (to check current difficulty levels).
  * `Hostility Orb` (to create safe zones).

## L2 Traits Overview

Mobs gain traits based on their level and player difficulty. Higher-level traits appear as difficulty increases. Use the in-game Patchouli book (or JEI/tooltips if applicable) for detailed info on specific traits. To see how to make a Mob Farm to get these traits go to the [Enderman Farm (L2 Trait Symbol Focus)](/guides/general/mob-farms.md#__tabbed_3_2).

**(Default Disabled Traits: `Undying`, `Killer Aura`, `Ragnarok` are powerful Legendary traits that are DISABLED by default in the configuration but can be re-enabled via config/datapack.)**

### Regular Traits

* `Fiery`: Ignites attacker/target on hit.
* `Invisible`: Mob and equipment are invisible (use `Detector Glass`).
* `Protection`: Gains Damage Resistance effect.
* `Regenerate`: Regenerates health slowly.
* `Speedy`: Moves very quickly.
* `Tank`: Gains significantly more health and armor.
* `Shulker`: Shoots shulker-like projectiles applying carried potion effects (no levitation).
* `Gravity`: Increases gravity nearby (fall faster, jump lower).
* `Moonwalk`: Decreases gravity nearby (fall slower, jump higher).
* `Counter Strike`: Dashes back at the attacker after being hit and landing.

### Advanced Traits (Appear Lv.100+)

* `Adaptive`: Remembers damage types recently taken and gains resistance to them. Higher levels remember more types.
* `Reflect`: Reflects direct physical damage (use projectiles or magic).
* `Grenade`: Shoots explosive projectiles periodically.
* `Growth` (Slime-only): Grows larger when healed to full health. Can become very large.
* `Split`: Splits into two copies with half level and the same trait (`Split` level -1) upon death. Copies drop no loot.
* `Drain`: Removes random positive effects and extends negative effects on hit. Deals more damage if the target has negative effects.
* `Reprint`: Copies target’s equipment enchantments on hit. Damage increases based on target’s total enchantment levels.
* `Corrosion` (Lv.200+): Damages target equipment durability based on *missing* durability on hit (Counter with `Hardened` enchantment).
* `Erosion` (Lv.200+): Damages target equipment durability based on *remaining* durability on hit (Counter with `Hardened` enchantment).

### Potion Traits

Inflict corresponding status effects on hit:

* `Blinder`: Blindness
* `Distorter`: Nausea
* `Levitater`: Levitation
* `Stray`: Slowness
* `Weakener`: Weakness
* `Poisonous`: Poison
* `Withering`: Wither
* `Cursed`
* `Soul Burner`
* `Freezing`

### Legendary Traits (Unlock after killing Rank 5 trait mob, Appear Lv.100+)

* `Dementor`: Immune to physical damage; attacks bypass armor.
* `Dispelling`: Immune to magic damage; attacks bypass magic protection. Can temporarily disable enchantments on target’s gear.
* `Teleport`: Teleports to avoid physical damage (use **magic**).
* `Repelling`: Pushes entities away (Counter with full `Insulator` set).
* `Pulling`: Pulls entities closer (Counter with full `Insulator` set).
* `Undying` **(DISABLED BY DEFAULT)**: Respawns after death unless killed with `Cursed` effect.
* `Killer Aura` **(DISABLED BY DEFAULT, Lv.300+)**: Deals periodic AoE damage (range indicated by particles).
* `Ragnarok` **(DISABLED BY DEFAULT, Lv.600+)**: Temporarily “seals” target’s equipment/curios on hit. Hold the item to unseal.

## Mod Interactions & Trait Whitelists

L2 Hostiles includes specific configurations and mob assignments for several mods and traits.

### General Mod Interactions

* **Twilight Forest:**
  * Naga: Min Lv.50.
  * Mini-bosses: Min Lv.100.
  * Other bosses: Min Lv.150.
  * All bosses gain `Cursed` + 1 other fixed trait.
  * Boss spawners craftable using trophies, relevant trait symbols, and `Chaos Ingots`.
* ~~**Ice and Fire:**~~(Not ported to 1.21.1 yet)
  * ~~Dragons: Min Lv.100, 3 fixed traits (incl. `Regen`, `Adaptive`). Do NOT gain `Tank`. Handle high-level Regen/Adaptive carefully!~~
  * ~~Ghosts: Gain `Dementor` at high levels (Magic damage required).~~
  * ~~Sirens: Gain `Drain` and `Distorter` at high levels.~~
* **Cataclysm:**
  * Mini-bosses: Min Lv.100, 2 fixed traits.
  * Bosses: Min Lv.200, 3 fixed traits.
  * Bosses >Lv.600 may carry special Curios making them extremely dangerous.
  * Ignis & Ancient Remnant (v2.4.24+): Spawn minions; >Lv.400 spawn protectors that grant damage immunity.
  * *Note:* Once a Cataclysm boss is killed, other mobs in the area might spawn with its weapons.

### Specific L2 Trait Whitelists

These lists indicate which specific mobs are eligible to spawn with certain L2 Traits (when difficulty is high enough).

#### Adaptive

```
twilightforest:carminite_golem
twilightforest:upper_goblin_knight
twilightforest:lower_goblin_knight
cataclysm:coral_golem
iceandfire:dread_knight
```

#### Dementor

```
twilightforest:wraith
twilightforest:mist_wolf
iceandfire:ghost
```

#### Dispell

```
deeperdarker:shattered
deeperdarker:stalker
deeperdarker:sculk_snapper
deeperdarker:sculk_leech
deeperdarker:sculk_centipede
deeperdarker:sludge
deeperdarker:shriek_worm
```

#### Reprint

```
twilightforest:minoshroom
twilightforest:minotaur
twilightforest:redcap
twilightforest:redcap_sapper
```

#### Split

```
minecraft:zombie
minecraft:zombie_villager
minecraft:zombified_piglin
minecraft:drowned
minecraft:husk
minecraft:skeleton
minecraft:wither_skeleton
minecraft:stray
minecraft:spider
minecraft:cave_spider
minecraft:creeper
```


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