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Old Glast Heim (Challenge Mode)

  • Level Required: 170
  • Party Count: 1+
  • Location: /navi glast_01 143/288
  • Cooldown: 3 Days
  • Reward: Scales with Difficulty Level. See Rewards Section below

Video Run by Kuuwang

Difficulty Level

OGH:CM has a selectable difficulty system where you can unlock stronger versions of the instance after completing an easier version of the instance.


Difficulty Level Number of Clears Phantom Amdarais HP
Lv 1 You start at Lv 1 600,000,000
Lv 2 5 times 750,000,000
Lv 3 11 times 900,000,000
Lv 4 18 times 1,050,000,000
Lv 5 26 times 1,200,000,000
Lv 6 35 times 1,350,000,000
Lv 7 45 times 1,500,000,000
Lv 8 60 times 1,650,000,000
Lv 9 80 times 1,800,000,000
Lv 10 100 times 1,950,000,000

The higher difficulty level will do the following:

  • Scale all monsters damage by (Damage * Difficulty Level)
  • Scale Phantom Amdarais HP by (450,000,000 + [150,000,000 * Difficulty Level])
  • More skill/mechanics during Phantom Amdarais fight
  • Increase rewards



  • ORANGE: Start Point
  • BLUE: Left side (50 mobs)
  • GREEN: Right side (50 mobs)
  • YELLOW: Start Position / Portal Location
  • PURPLE: MVP fight location

Upon entering the instance, you start at the orange spot. You will see Oscar (오스카) NPC. The party leader must talk to the NPC to initiate the battle. All party members will be randomly split to the left side (blue box) and right (green box) of the map. There are 50 monsters per side. You must clear 46 monsters in order to unlock the portal (yellow). If the other side is not cleared, the portal will lead you to the other side. You can have your support party members not move and they will be safe until you finish clearing your side. Once both sides has been cleared, the portal will lead to the center corridor where you will meet with Oscar who will lead you to battle against Phantom Amdarais.

If you are fighting in higher difficulty level, there is a chance that Oscar will announce a message: 뭔가 기분 나쁜 녀석이 중앙통로에 나타났군요. A Prime Corruption Root will spawn in the center corridor and you must kill it within 30 seconds. If you fail to kill it on time, the Prime Corruption Root will kill all members on screen (15×15). The amount of Prime Corruption Root spawned depends on the difficulty level. Two or more can spawn at difficulty level 4 while up to five can spawn at difficulty level 10.

General Recommendations:


Phantom Amdarais Fight

NOTE: Instead of Phantom Amdarais, you have a 5~10% chance to fight Phantom Himmelmez instead. The mechanics are the same. The only difference is you have the opportunity to get her card.

Mechanic Difficulty Level Description Image
Plant Defense Lv 1 or Higher If any party member is dead, Phantom Amdarais will only take 1 damage for all attacks. This effect go away when all party members are alive again. {{}}
Restart Lv 1 or Higher If all party members are dead, Phantom Amdarais will despawn and Oscar appear again. You can summon Phantom Amdarais again by talking to Oscar. This mechanic is in place to prevent Token of Siegfried abuse. {{}}
Firewall (X Pattern) Lv 1 or Higher Spawns firewall in an incremental pattern that will push you very far away. It can be avoided by land protector. {{}}
Ground Drive (Ver. 1) Lv 1 or Higher Casts Heaven's Drive on the center of the MVP and spreads incrementally in a (+) pattern. It can be avoided by land protector. {{}}
Ground Drive (Ver. 2) Lv 1 or Higher Casts Heaven's Drive on the center of the MVP, then around MVP in a square pattern, followed by a spread incrementally in a (+) pattern. It can be avoided by land protector. {{}}
Immune Property Lv 1 or Higher For 30 seconds, MVP receives elemental immunity (physical and magical) to a particular element. The MVP always chooses Holy Immunity. You can use the skill Dispel or Clearance to remove this effect on the MVP. Pay attention to the symbol above the MVP and switch to a neutral elemental. {{}}
Grand Darkness (Grid) Lv 1 or Higher When the MVP is below 90% HP, a grid of Mutated Thorn will appear on the map. After 5 seconds, all surviving Mutated Thorn will hide and cast Dark Grand Cross for 10 seconds. Bathory card will assist in surviving. You can kill the Mutated Thorn so they do not cast Grand Darkness. It is best to stay in the middle of the 4 Mutated Thorns in order to avoid getting hit. {{}}
Grand Darkness Lv 1 or Higher MVP will cast Dark Grand Cross that will follow him around. Bathory card will assist in surviving. {{}}
Rain of Meteor Lv 1 or Higher Lands fire property meteor (magical damage) on the center of the MVP and spreads incrementally in a (x) pattern. It can be avoided by land protector. {{}}
Demonic Hell Judgement Lv 1 or Higher A 1 second cast time skill with a 13×13 area of effect with a warning red tile on the floor. This skill deals physical damage (defense-piercing and dark property) and inflicts a random status effect. The damage is either melee or range depending on how close you are to the MVP. {{}}
Ganbantein (Lv 9) Lv 1 or Higher Instantly removes all ground spells in a 9×9 area on the center of the MVP. {{}}
Spawn Mutated Khalitzburg Lv 1 or Higher When the MVP is below 70%, it will spawn Mutated Khalitzburg. {{}}
Spawn Mutated White Knight Lv 1 or Higher When the MVP is below 50%, it will spawn Mutated White Knight. {{}}
Spawn Mutated Raydric Archer Lv 1 or Higher When the MVP is below 30%, it will spawn Mutated Raydric Archer. {{}}
Max Pain Lv 3 or Higher Turns the MVP golden color that will keep track of all damage the MVP receives. After certain amount of time, the MVP will reflect all damage it took to everyone on the screen. It is best to stop attacking the MVP or dispel it. {{}}
Grim Reaper Lv 3 or Higher Reaper Yanku spawns as an NPC and will slowly walk to the MVP to give it powerful HP regeneration that stacks. If you take too long to kill the MVP, it will become impossible to outdamage the MVP's regen. {{}}
Gradual Gravity Lv 9 or Higher Casts a debuff that reduces your HP by a certain percentage of your max HP per second. This effect can kill you. The best counter to this is to constantly use potions. {{}}
? Lv 10 10단계에서는 보스몬스터 소환 후 1분이 지났는데 특정위치로 데려가지 않으면 광포화 합 니다. {{}}


After defeating Phantom Amdarais, a treasure chest NPC spawns in the middle. When you click on it, temporal items will drop on the floor. The amount of rewards scales with difficulty level.

Reward Item Difficulty Level
Lv 1 Lv 2 Lv 3 Lv 4 Lv 5 Lv 6 Lv 7 Lv 8 Lv 9 Lv 10
Sealed Temporal Circlet 1~5 1~6 2~7 2~8 3~9 3~10 4~10 4~10 5~10 5~10
Temporal Gemstone 0 0 1~3 1~4 1~4 1~5 2~5 2~6 2~6 2~7
Temporal Spell 0 0 0 0 1~3 3~7 5~11 8~16 11~22 14~28
Temporal Fragment 1~15 1~20 1~25 1~30 2~30 2~30 3~30 3~30 4~30 4~30

Item Exchange

You can exchange your rewards for items and weapons.

Sealed Conversion

When you exchange 1 Sealed Temporal Circlet, you can be rewarded with up to 3 conversions:

  • 1 Conversion - 61.16% Chance
  • 2 Conversions - 37.32% Chance
  • 3 Conversions - 1.519% Chance
Conversion Reward Chance
4 Temporal Fragment 78.93%
8 Temporal Fragment 11.28%
12 Temporal Fragment 1.42%
16 Temporal Fragment 0.41%
1 Temporal Gemstone 5.87%
2 Temporal Gemstone 1.35%
3 Temporal Gemstone 0.34%
4 Temporal Gemstone 0.07%
1 Temporal Spell 0.20%
2 Temporal Spell 0.07%
3 Temporal Spell 0.07%

Royal & Guardian Weapons

Temporal Circlet

Temporal Circlet Enchantment

/navi glast_01 137/291

Talk to NPC OSC0005 to enchant your Temporal Circlet.

First Enchant Second Enchant (Normal) Second Enchant (Special) Third Enchant
Slot Location 4th 3rd 2nd
Material Temporal Fragment 10 Temporal Fragment 20 Temporal Gemstone 2 Temporal Spell 2
Possible Enchants INT+1 INT+1 Temporal Jewel (STR) Lv1 Sharp 1
INT+2 INT+2 Temporal Jewel (STR) Lv2 Sharp 2
INT+3 INT+3 Temporal Jewel (STR) Lv3 Sharp 3
INT+4 INT+4 Temporal Jewel (AGI) Lv1 Sharp 4
STR+1 STR+1 Temporal Jewel (AGI) Lv2 Expert Archer 1
STR+2 STR+2 Temporal Jewel (AGI) Lv3 Expert Archer 2
STR+3 STR+3 Temporal Jewel (VIT) Lv1 Expert Archer 3
STR+4 STR+4 Temporal Jewel (VIT) Lv2 Expert Archer 4
VIT+1 VIT+1 Temporal Jewel (VIT) Lv3 ASPD 1
VIT+2 VIT+2 Temporal Jewel (INT) Lv1 ASPD 2
VIT+3 VIT+3 Temporal Jewel (INT) Lv2 ASPD 3
VIT+4 VIT+4 Temporal Jewel (INT) Lv3 ASPD 4
LUK+1 LUK+1 Temporal Jewel (DEX) Lv1 Spell 1
LUK+2 LUK+2 Temporal Jewel (DEX) Lv2 Spell 2
LUK+3 LUK+3 Temporal Jewel (DEX) Lv3 Spell 3
LUK+4 LUK+4 Temporal Jewel (LUK) Lv1 Spell 4
- Temporal Jewel (STR) Lv1 Temporal Jewel (LUK) Lv2 Unyielding Lv1
- Temporal Jewel (STR) Lv2 Temporal Jewel (LUK) Lv3 Mettle Lv1
- Temporal Jewel (STR) Lv3 - Affection Lv1
- Temporal Jewel (AGI) Lv1 - Adamantine Lv1
- Temporal Jewel (AGI) Lv2 - Master Archer Lv1
- Temporal Jewel (AGI) Lv3 - Magic Essence Lv1
- Temporal Jewel (VIT) Lv1 - Acute Lv1
- Temporal Jewel (VIT) Lv2 - -
- Temporal Jewel (VIT) Lv3 - -
- Temporal Jewel (INT) Lv1 - -
- Temporal Jewel (INT) Lv2 - -
- Temporal Jewel (INT) Lv3 - -
- Temporal Jewel (DEX) Lv1 - -
- Temporal Jewel (DEX) Lv2 - -
- Temporal Jewel (DEX) Lv3 - -
- Temporal Jewel (LUK) Lv1 - -
- Temporal Jewel (LUK) Lv2 - -
- Temporal Jewel (LUK) Lv3 - -

If you receive Unyielding, Mettle, Affection, Adamantine, Master Archer, Magic Essence or Acute on the third enchant, it can be leveled in a similar fashion to Bio5 Headgears.

Level Upgrade Temporal Spell Required
Lv1 → Lv2 4
Lv2 → Lv3 6
Lv3 → Lv4 8
Lv4 → Lv5 10
Lv5 → Lv6 12
Lv6 → Lv7 16
Lv7 → Lv8 20
Lv8 → Lv9 28
Lv9 → Lv10 40


  • Every level upgrade attempt has a chance of failure.
  • If you fail on level 2 or higher, the enchant level will be downgraded by 1 level.
  • If you fail on level 1, you will only lose material and the enchant will remain Lv1.
  • No item destruction on failure.

You can reset the headgear (all enchants at once, not selectable) with two options:

  • 500,000z - 70% Success. On failure, headgear is destroyed.
  • 2 Nyan Fruit - 100% Success.


instances/ogh_cm.txt · Last modified: 2021/05/30 17:51 (external edit)