⚔ Fever System
The Fever System transforms selected fields and dungeons into high-stakes hunting zones. Fever maps contain stronger monster variants, random-option equipment, Rupes Nigra materials, themed set bonuses, special boss encounters, and item combo effects. Fever entrances are marked by a red portal.
Core Fever Rules
🔥
Random Options
Every Fever equipment drop can roll random stat options themed to that map. Fever rolls can include powerful positive effects and controlled drawback options, creating valuable but imperfect gear chase items.
💎
Rupes Nigra Materials
Fever monsters can drop Rupes Nigra materials. Harder maps, elite monsters, and Fever MVPs are the best source of higher-tier materials.
⚠️
GvG / WoE Restriction
Fever set bonuses and special combo effects are disabled on maps flagged as GvG, WoE, Castle, or Guild War.
Fever Random Option Structure
How Fever Rolls Work
Fever equipment is designed to roll positive bonuses and may also roll drawback options. Drawbacks are not negative drop chances; they are normal item options with negative stat effects. This keeps the system compatible with Ragnarok-style item scripting while making perfect rolls more valuable.
Normal Fever Monster
Entry Roll
Guaranteed: 1 random option
Bonus positive: 50%
Drawback: 50%
Elite Fever Monster
Improved Roll
Guaranteed: 1 random option
Bonus positive: 80%
Drawback: 20%
Fever MVP
Premium Roll
Guaranteed: 2 random options
Bonus positive: 80%
Rare roll: 12%
Drawback: 8%
Rupes Nigra Material Chain
Progression Materials
| Material
|
Rarity
|
Primary Use
|
|
Rupes Nigra Fragment
|
Common
|
Entry Fever upgrades, early material conversion, and basic combo support.
|
|
Rupes Nigra Shard
|
Uncommon
|
Crafting upgrades, exchange recipes, and special equipment infusion. These materials are not equipped and should not be used as direct item-combo triggers.
|
|
Rupes Nigra Stone
|
Rare
|
High-end Fever crafting and capstone upgrades. These materials are not equipped and should not be used as direct item-combo triggers.
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Fever Map Navigator
🐉
Abyss Lake
Dragonbone Set
Payon Forest Fever Field
Payon Forest is an entry Fever field built around Poison pressure, Brute and Plant hunting, regeneration, and defensive sustain.
Forest Set
Forest Armor
HP, VIT, Poison resistance, Plant damage reduction.
Forest Manteau
Ranged reduction, Flee, Perfect Dodge, Earth/Wind resistance.
Forest Set Bonus
⬡ Full Set Effect
- Max HP +10%
- Natural HP recovery +15%
- Damage dealt to Plant and Brute monsters +8%
- HP healing received +20%
⚠ Disabled on GvG / WoE flagged maps.
Forest Random Options
Forest Random Option Pool
Forest options focus on sustain, Poison resistance, Plant/Brute hunting, and safe early Fever progression.
Positive Rolls
These are the desirable bonuses that define the set's hunting identity.
Drawback Rolls
These are controlled penalties that make perfect Fever equipment rare and valuable.
Positive Options
| Option
|
Range
|
Purpose
|
| Plant Damage
|
+4% ~ +12%
|
Primary Payon Forest farming modifier.
|
| Brute Damage
|
+4% ~ +10%
|
Secondary damage route for mixed forest monster groups.
|
| Max HP
|
+3% ~ +8%
|
Improves sustain and early Fever survivability.
|
| Healing Received
|
+4% ~ +10%
|
Makes potions, Heal, and recovery effects stronger.
|
| Poison Resistance
|
+10% ~ +30%
|
Protects against poison pressure in forest maps.
|
| HP on Kill
|
1% ~ 3%
|
Gives momentum while clearing dense monster packs.
|
Drawback Options
| Drawback
|
Range
|
Tradeoff
|
| Fire Weakness
|
-3% ~ -8%
|
Makes the item weaker outside its forest identity.
|
| Max SP Loss
|
-2% ~ -6%
|
Hurts skill-heavy farming builds.
|
| ASPD Loss
|
-1% ~ -3%
|
A small penalty for fast attackers.
|
| HIT Loss
|
-5 ~ -15
|
Makes evasive monsters harder to farm.
|
| Plant Burden
|
+3% ~ +8%
|
Risky drawback against the same map identity.
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Forest Item Combos
🔗 Combo I — Umbral Shepherd Mid-Tier
Priest sustain · Shadow resistance · Undead farming
- Heal and Sanctuary restore +15% more HP.
- Shadow-property damage received -10%.
- Max SP +100.
- SP consumption -5%.
⚙ Implementation note: This combo uses ordinary stat, resistance, and skill-cost bonuses. It does not require custom source hooks.
🔗 Combo II — Moonlit Fox Powerful
Kiting · SP recovery · Two-card equipment objective
- FLEE +20.
- SP Recovery rate +15% additional.
- Ranged physical damage +8%.
- AGI +1.
⚙ How it plays: This is a real equipment/card objective: Forest Manteau carries the evasive Nine Tail route, while Eggyra gives the SP sustain needed for constant kiting and ranged farming.
Sograt Desert Fever Field
Sograt Desert is built around Fire pressure, Insect swarms, Brute threats, defensive endurance, and status-based counterplay.
Sand Set
Sand Armor
Max HP, DEF, VIT, Fire/Neutral resistance.
Sand Manteau
Ranged reduction, Fire/Earth resistance, Perfect Dodge.
Sand Set Bonus
⬡ Full Set Effect
- Max HP +8%
- Ranged damage received −5%
- Damage dealt to Fire element monsters +10%
- Resistance to Silence, Curse, Blind, and Stun +20%
⚠ Disabled on GvG / WoE flagged maps.
Sand Random Options
Sand Random Option Pool
Sand options focus on accuracy, Fire resistance, Insect/Brute hunting, and desert endurance.
Positive Rolls
These are the desirable bonuses that define the set's hunting identity.
Drawback Rolls
These are controlled penalties that make perfect Fever equipment rare and valuable.
Positive Options
| Option
|
Range
|
Purpose
|
| Insect Damage
|
+4% ~ +12%
|
Primary Sograt Desert swarm-clearing modifier.
|
| Brute Damage
|
+4% ~ +10%
|
Useful against mixed desert threats.
|
| HIT
|
+8 ~ +30
|
Solves accuracy problems against evasive monsters.
|
| Fire Resistance
|
+4% ~ +12%
|
Core defensive stat for desert pressure.
|
| Ranged Reduction
|
-3% ~ -8%
|
Helps against ranged harassment and safer pulling.
|
| Sleep Proc
|
1% ~ 4%
|
Adds crowd-control flavor through physical attacks.
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Drawback Options
| Drawback
|
Range
|
Tradeoff
|
| Water Weakness
|
-3% ~ -8%
|
Elemental vulnerability outside the desert theme.
|
| Cast Time Penalty
|
+3% ~ +8%
|
Punishes caster builds on unlucky rolls.
|
| SP Cost Penalty
|
+3% ~ +8%
|
Makes sustained skill farming more expensive.
|
| FLEE Loss
|
-5 ~ -18
|
Reduces evasive defensive builds.
|
| Critical Loss
|
-2 ~ -6
|
Hurts crit-based physical characters.
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Desert Item Combos
🔗 Combo I — Sandstorm Ambush Mid-Tier
Sleep control · Defensive bait · Practical desert farming
- DEF +10
- Physical attacks have a 5% chance to inflict Sleep.
- Damage against Insect monsters +8%.
- Fire element resistance +5%.
🔗 Combo II — Phreeoni's Mask Powerful
Accuracy · Anti-swarm damage · Feasible replacement for Phreeoni Card gating
- HIT +30.
- ATK +20.
- Physical damage against Insect and Brute monsters +10%.
- Ignore 10% DEF of Insect and Brute monsters.
Glast Heim Fever Dungeons
Glast Heim Fever maps focus on Undead and Demon hunting, Shadow pressure, SP management, Curse resistance, and anti-ghost utility.
Shadow Set
Shadow Armor
Shadow resistance, SP sustain, Undead/Demon mitigation.
Shadow Manteau
Neutral reduction, Flee, Perfect Dodge, magic pressure control.
Shadow Set Bonus
⬡ Full Set Effect
- Damage received from Undead and Demon monsters −10%
- Damage dealt to Shadow element monsters +10%
- SP recovery +20%
- Immune to Curse
⚠ Disabled on GvG / WoE flagged maps.
Shadow Random Options
Shadow Random Option Pool
Shadow options focus on Glast Heim farming, SP economy, Shadow defense, and curse-based retaliation.
Positive Rolls
These are the desirable bonuses that define the set's hunting identity.
Drawback Rolls
These are controlled penalties that make perfect Fever equipment rare and valuable.
Positive Options
| Option
|
Range
|
Purpose
|
| Undead Damage
|
+5% ~ +14%
|
Primary Glast Heim farming modifier.
|
| Demon Damage
|
+5% ~ +13%
|
Secondary route for mixed undead/demon maps.
|
| Shadow Resistance
|
+4% ~ +12%
|
Core survival stat against dark pressure.
|
| SP Recovery
|
+5% ~ +15%
|
Supports caster and skill-heavy farming.
|
| Cast Reduction
|
-3% ~ -10%
|
Improves spell tempo and responsiveness.
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| Curse Retaliation
|
1% ~ 4%
|
Punishes attackers and reinforces the haunted identity.
|
Drawback Options
| Drawback
|
Range
|
Tradeoff
|
| Holy Weakness
|
-3% ~ -8%
|
Thematic weakness for shadow-infused gear.
|
| Max HP Loss
|
-2% ~ -6%
|
Creates real risk on otherwise strong caster rolls.
|
| Healing Loss
|
-3% ~ -8%
|
Weakens potion and support recovery.
|
| ATK Loss
|
-5 ~ -20
|
Hurts physical hybrid routes.
|
| AGI Loss
|
-1 ~ -3
|
Clean implementation of the dark-weight drawback.
|
Glast Heim Item Combos
🔗 Combo I — Spectral Mage Mid-Tier
MATK scaling · SP economy · Undead/Demon caster route
- MATK +5% additional.
- INT +3.
- SP consumption -5%.
- -10% variable cast time.
🔗 Combo II — Gravebound Hex Powerful
Shadow defense · Curse retaliation · Undead/Demon frontline route
- Damage received from Undead and Demon monsters -8%.
- Shadow element resistance +10%.
- Max HP +5%.
- VIT +2.
- When physically attacked, has a 3% chance to inflict Curse on the attacker.
⚙ How it plays: This is a frontline Shadow-set combo. Shadow Armor gives the set identity, Waste Stove adds the haunted curse pressure, and Bison Horn turns the build into a durable Glast Heim brawler route.
Magma Dungeon Level 3 Fever Area
Magma Dungeon Fever is a high-pressure Fire environment built around SP sustain, Fire resistance, explosive farming, and hybrid fire pressure.
Magma Set
Magma Shoes
SP sustain, after-cast support, kill recovery.
Magma Set Bonus
⬡ Full Set Effect
- Fire element resistance +15%
- ATK/MATK +3%
- Damage against Earth monsters +10%
⚠ Disabled on GvG / WoE flagged maps.
Magma Random Options
Magma Random Option Pool
Magma options focus on Fire resistance, Earth monster damage, caster flow, and hybrid fire pressure.
Positive Rolls
These are the desirable bonuses that define the set's hunting identity.
Drawback Rolls
These are controlled penalties that make perfect Fever equipment rare and valuable.
Positive Options
| Option
|
Range
|
Purpose
|
| Fire Magic Damage
|
+4% ~ +12%
|
Main fire-caster scaling roll.
|
| Earth Damage
|
+5% ~ +14%
|
Primary Magma hunting modifier against Earth monsters.
|
| Fire Resistance
|
+5% ~ +15%
|
Core survival stat in Magma environments.
|
| ATK/MATK
|
+2% ~ +6%
|
Hybrid scaling for battle-mage and physical builds.
|
| SP on Kill
|
1% ~ 3%
|
Maintains farming momentum during long clears.
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| Fire Auto-cast
|
1% ~ 4%
|
Adds explosive identity to physical attacks.
|
Drawback Options
| Drawback
|
Range
|
Tradeoff
|
| Water Weakness
|
-4% ~ -10%
|
Clear elemental counterweight to Fire gear.
|
| Water Damage Taken
|
+3% ~ +8%
|
Extra punishment against water-property monsters.
|
| SP Cost Penalty
|
+3% ~ +10%
|
Makes spell spam more expensive.
|
| After-cast Penalty
|
+3% ~ +8%
|
Weakens high-tempo caster builds.
|
| DEF Loss
|
-5 ~ -15
|
Makes aggressive rolls less safe.
|
Magma Item Combos
🔗 Combo I — Cinder Arcanist Mid-Tier
Fire spell specialization · Cross-map card objective · Caster route
- MATK +4%.
- Fire Bolt damage +15%.
- Meteor Storm damage +15% additional.
- SP consumption -5%.
🔗 Combo II — Volcanix Hex Powerful
Battle-mage pressure · Fire retaliation · Flame Lord route
- ATK/MATK +5%.
- Fire element resistance +10%.
- Physical damage against Earth monsters +10%.
- Physical attacks have a 3% chance to auto-cast Fire Ball Lv.5.
- When attacking, has a small chance to gain ATK +20 for 10 seconds.
⚙ Implementation note: Volcanix Hex uses ordinary ATK/MATK, resistance, race/element damage, auto-cast, and temporary self-buff logic. It is designed to be implemented with standard rAthena item-script patterns.
Abyss Lake Fever Area
Abyss Lake Fever focuses on Dragon hunting, boss pressure, Large-size targets, critical scaling, and high-value endgame farming.
Dragonbone Set
Dragonbone Set Bonus
⬡ Full Set Effect
- Damage against Dragon race +12%
- Dragon race damage received −10%
- Critical damage +8%
- Max HP +8%
⚠ Disabled on GvG / WoE flagged maps.
Dragonbone Random Options
Dragonbone Random Option Pool
Dragonbone options focus on Dragon hunting, boss pressure, Large targets, critical scaling, and accuracy.
Positive Rolls
These are the desirable bonuses that define the set's hunting identity.
Drawback Rolls
These are controlled penalties that make perfect Fever equipment rare and valuable.
Positive Options
| Option
|
Range
|
Purpose
|
| Dragon Damage
|
+6% ~ +16%
|
Primary Abyss Lake hunting modifier.
|
| Boss Damage
|
+3% ~ +10%
|
Improves performance against high-value targets.
|
| Large Damage
|
+4% ~ +12%
|
Supports large monster and boss pressure.
|
| Critical Damage
|
+5% ~ +14%
|
Core offensive scaling for dragon hunters.
|
| HIT
|
+10 ~ +30
|
Stabilizes damage against evasive targets.
|
| Dragon Reduction
|
-4% ~ -12%
|
Defensive counterpart to dragon hunting.
|
Drawback Options
| Drawback
|
Range
|
Tradeoff
|
| Small Damage Loss
|
-4% ~ -10%
|
Narrows the item toward large prey.
|
| Critical Rate Loss
|
-2 ~ -8
|
Weakens crit builds if paired with bad rolls.
|
| Max SP Loss
|
-3% ~ -8%
|
Hurts skill-heavy dragon farming.
|
| Normal Monster Weakness
|
+2% ~ +6%
|
Trades boss identity for weaker general farming.
|
| FLEE Loss
|
-5 ~ -20
|
Forces commitment instead of evasion.
|
Abyss Lake Item Combos
🔗 Combo I — Dragon's Blood Mid-Tier
Dragon damage · Critical momentum · Yellow Acidus precision route
- Physical damage against Dragon monsters +10%.
- ASPD +5%.
- Critical Rate +7.
- Critical damage +8%.
- After killing a Dragon monster, recover 2% Max HP.
⚙ Item note: Dragon's Blood now uses Yellow Acidus Card and Ulle's Hat to make the combo feel more naturally tied to Abyss Lake and dragon-hunting momentum.
🔗 Combo II — Drake's Legacy Powerful
Boss breaker · Large target pressure · Bone Head execution route
⚠ Wearing Nidhogg's Shadow Garb replaces Dragonbone Manteau, so this combo is designed as an alternate boss-hunting route built around Dragonbone Shoes, not the full Dragonbone set.
- Physical damage against Large monsters +12%.
- Physical damage against Boss monsters +8%.
- Dragon race damage received -10%.
- HIT +25.
- Ignore 10% DEF of Dragon monsters.
Mythic Fever Combos
Optional Prestige Layer
MVP cards should not gate normal Fever progression. They are better reserved for a future Mythic layer: extremely rare, prestigious, and stronger than the normal Powerful combos. This keeps Fever progression playable while preserving the excitement of true MVP-card chase items.
| Map
|
Mythic Card
|
Suggested Mythic Upgrade
|
| Forest
|
Moonlight Flower Card
|
Stronger movement, stronger Blind-on-dodge, higher ranged scaling.
|
| Desert
|
Phreeoni Card
|
Massive HIT and stronger DEF ignore against evasive/boss targets.
|
| Glast Heim
|
Doppelganger Card
|
Higher ASPD and stronger Soul Strike / Spectral Echo procs.
|
| Magma
|
Kiel-D-01 Card
|
True after-cast-delay caster route.
|
| Abyss Lake
|
Drake Card
|
Stronger boss/Large DEF penetration and weapon freedom.
|
System Reference
Fever Maps at a Glance
| Map
|
Set
|
Core Identity
|
Normal Combo Route
|
| Payon Forest
|
Forest
|
HP sustain, Brute/Plant hunting, Poison pressure
|
Bathory / Nine Tail + Eggyra
|
| Sograt Desert
|
Sand
|
DEF, Sleep, Fire resistance, accuracy
|
Sandman / Goblin Mask / Andre
|
| Glast Heim
|
Shadow
|
Undead/Demon hunting, SP economy, Shadow resistance
|
Agav / Waste Stove + Bison Horn
|
| Magma Dungeon
|
Magma
|
Fire resistance, kill sustain, hybrid fire pressure
|
Salamander / Imp / Magmaring + Flame Lord
|
| Abyss Lake
|
Dragonbone
|
Dragon hunting, boss pressure, Large targets
|
Yellow Acidus + Ulle's Hat / Nidhogg + Bone Head
|
Implementation Notes
- Drawback options should be implemented as separate random-option IDs with negative effects in the option script.
- Store option values as positive numbers and apply the negative sign inside the script where needed.
- Fever MVP equipment should not always be perfect. The best items should come from strong positive rolls with no drawback or with a harmless drawback for the player's build.
- GvG / WoE disable logic should be handled in the equip script or central Fever bonus controller.
See Also