MapleStory/Arcane River


 * Entry Requirements
 * Road to Extinction: Level 200+, Completed 5th Job Advancement
 * Chew Chew Island: Level 210+, Completed "Road to Extinction" Quests (except daily quests)
 * Lachelm: Level 220+, Completed "Chew Chew Island" Quests (except daily quests)

Arcane River is the area which the Erdas are located. To enter, you must have completed the 5th Job Advancement to absorb the Erda's power.

Maps
There are 3 main areas in Arcane River: Road to Extinction, Chew Chew Island, Lachelm.

Road to Extinction
There are 5 main areas in Road to Extinction.
 * 1) Nameless Village: Town of Road to Extinction. The house for all priests who investigates the Arcane River.
 * 2) Oblivion Lake: Monster ranges from Level 200 to 203. Recommended level: 200-205. Requires 30 Arcane Force.
 * 3) Cliff: Monster ranges from Level 204 to 206. Recommended level: 200-210. Requires 50 Arcane Force.
 * 4) Cave of Rest: Monster ranges from Level 207 to 210. Recommended level: 205-210. Requires 80 Arcane Force.
 * 5) Waterfall: End of Road to Extinction. Jump down the waterfall to enter Chew Chew Island (Requires Level 210+ and completed all Road to Extinction quests except Daily Quests)

Daily Quests
In Road to Extinction, you can accept daily quests from the Priest in Nameless Village. The list below shows the possible daily quests from each Patrolbot. All Quests reward 1 "Arcane Symbol: Road to Extinction" upon completion.

You can change the quest list once and you can choose which quests to keep. After the change, no further change is allowed for that day's quests.


 * Some Quests may tell you to go to another map after collecting the etc items as the nature of the quest is Item Delivery.


 * Tip: If you just want to complete 5 requests as soon as possible, you should keep 2 or 3 quests involving the same monsters since it is basically clearing 2 or 3 quests for the effort of 1 quest.


 * Possible Quests
 * Kill 200 Joyful Erdas
 * Collect 50 Joyful Erda's Samples
 * Kill 200 Angry Erdas
 * Collect 50 Angry Erda's Samples
 * Kill 200 Sad Erdas
 * Collect 50 Sad Erda's Samples
 * Kill 200 Pleasant Erdas
 * Collect 50 Pleasant Erda's Samples
 * Kill 200 Rocky Erdas
 * Collect 50 Rocky Erda's Samples
 * Kill 200 Blazing Erdas
 * Collect 50 Blazing Erda's Samples
 * Kill 200 Robust Soul Erdas
 * Collect 50 Robust Soul Erda's Samples
 * Kill 200 Erdas of Rest
 * Collect 50 Erdas of Rest's Samples
 * Kill 130 Erda's Lanterns
 * Collect 33 Erda's Lantern's Samples
 * Collect 30 Memory Loss Medications and deliver to Jenna (found in Wild-borne Land of Anger and Sadness)
 * Collect 30 Extinction Saver and deliver to Jenna (found in Land of Flames)
 * Collect 30 Rest Medications and deliver to Jenna (found in Cave: Lower Part)

After clearing all 5 quests, the last quest will be completed and you will receive 3 Arcane Symbols: Road to Extinction.

Lucid Boss
Lucid resides in the end of Lachelm. To enter, you must be Level 220 or higher and must have completed all Lachelm quests. Requires 360 Arcane Force.

Arcane Force and Arcane Symbols
Arcane force is used in Arcane River to penetrate the defence system of Erdas. Arcane Symbols are the only source of Arcane Force. Based on your Arcane Force and required Arcane Force, your damage is adjusted to between 10% to 150% of the original damage.

Arcane Symbols
Arcane Symbols can be levelled up to give more Arcane Force by equipping duplicated Arcane Symbols. Arcane Symbols can be obtained from different ways. Note: Monster Drop rate is insanely low (about 1 in 20,000+ monsters at 1x drop rate)
 * Road to Extinction: Daily Quests and Monster Drops
 * Chew Chew Island: Daily Party Quests and Monster Drops
 * Lachelm: Monster Drops


 * Required number of symbols to level up: $$SymbolLevel^2 +11 $$
 * Required mesos to level up: $$12440000 + 6600000 \times SymbolLevel $$

Arcane Symbols will increase your Final Stats and Arcane Force.
 * All Jobs (except Xenon and Demon Avenger): 100 Final Primary Stat per 10 Arcane Force
 * Xenon: 39 Final STR, 39 Final DEX, 39 Final LUK per 10 Arcane Force
 * Demon Avenger: 1400 HP per 10 Arcane Force

Core Gemstones
Core Gemstones, or Node Gemstones, are dropped by monsters in Arcane River (about 1 in 5,000+ monsters at 1x drop rate). They will give a random core/node when you open them (about 70% chance to get what you can wear, about 30% chance to get unusable core/node)

Cores/Nodes will enhance your 5th Job Abilities. They can also be enhanced by feeding duplicates to level up to increase the abilities. Special cores cannot be enhanced.

Core Types
There are3 types of cores.
 * Skill: Gives a new skill
 * Enhance: Enhance 3 existing skills except 5th Job Skills. (Base skill + 2 random skills)
 * Special: Gives effects when conditions are met. Expires in 7 days.

Enhancing Cores
You can level up cores by feeding duplicates by talking to the V Core Master NPC in Arcane River. Right click the core you want to enhance and then click on the cores to feed them to the core you chose to enhance. For enhance type cores, duplicate is defined by 2 cores with same base skill. You cannot wear duplicate cores.

You can enhance up till Core Level 25.

Skill Core EXP

 * Core EXP Required to level up core: $$50+5 \times CoreLevel$$
 * Core EXP provided to another core if used for enhancement of another core (Core Level of core used is 1): 50
 * Core EXP provided to another core if used for enhancement of another core (Core Level of core used is 2 or higher): $$(17 \times CoreLevel^2 + 323 \times CoreLevel - 2)/8 $$, rounded up

Enhance Core EXP

 * Core EXP required to level up core: $$40+15 \times CoreLevel$$
 * Core EXP provided to another core if used for enhancement of another core (Core Level of core used is 1): 50
 * Core EXP provided to another core if used for enhancement of another core (Core Level of core used is 2 or higher): $$(51 \times CoreLevel^2 + 221 \times CoreLevel + 66)/8 $$, rounded up

Skill Levels
Your 5th Job Skill Levels will be the sum of core levels. For enhance core, a specific skill's enhance skill will be the sum of core levels of all cores enhancing that skill only.

Max skill levels are as follows
 * 5th job skills: 25
 * Enhance skills: 50
 * Special skills: 1

Disassemble Cores
Cores can be disassembled to give core pieces by talking to V Core Master NPC in Arcane River. Right click the cores that you want to disassemble. Core pieces can be used to create core gemstones or a core of your choice (for enhance cores, only base skill can be chosen).


 * Disassemble rates (Core Level 1)
 * Skill: 40
 * Enhance: 10
 * Special: 50


 * Disassemble rates (Core Level 2 or higher)
 * Skill: $$2 \times CoreLevel^2 + 38 \times CoreLevel $$
 * Enhance: $$(3 \times CoreLevel^2 + 13 \times CoreLevel + 4)/2 $$


 * Crafting Rates
 * Core Gemstone: 35
 * Enhance: 70
 * Skill: 140
 * Special: 250

Core Slots
Based on your level, you get core slots in your V matrix.