Translations:Old Glast Heim Challenge Mode/3/en

After defeating one side of monsters, Oscar will announce the following message: “...”. 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 party members on screen (15×15) and then Oscar will purify it (defeat it for you). 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. In order to have an opportunity in defeating the Prime Corruption Root, both sides must be cleared simultaneously so that the party can reach the center corridor in time. Alternatively, the party can entirely avoid the monster without any penalties other than less rewards from Oscar.

Once both sides have 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.

There is a chance that instead of Phantom Amdarais, players would battle against Phantom of Himmelmez. Some Skills & Mechanics may differ and you would have the opportunity to get her card.

Old Glast Heim Difficulty Level

Old Glast Heim Challenge Mode has a selectable difficulty system where you can unlock stronger versions of the instance after completing an easier version of the instance.
Your current challenge progress can be checked by talking to Oscar outside of the instance.

Difficulty Level	Progression Points needed	Phantom Amdarais HP
Level 1	0	600.000.000
Level 2	5	750.000.000
Level 3	11	900.000.000
Level 4	18	1.050.000.000
Level 5	26	1.200.000.000
Level 6	35	1.350.000.000
Level 7	45	1.500.000.000
Level 8	60	1.650.000.000
Level 9	80	1.800.000.000
Level 10	100	2.050.000.000

Higher difficulty levels will do the following: