Talk with the Chaos Goblin in Noria at coordinates 180, 100.
Select the option Chaos Weapon Combination.
In the 8 x 4 Chaos storage area, place:

One (1) or more Level 4 (minimum)+Option 4% (minimum) item(s).

One (1) or more Jewel(s) of Chaos.

Appropriate amount of Zen needed
After confirming success rate, press the Combining button.

If the combination succeeds, one Chaos Dragon Axe, Chaos Thunder Staff or Chaos Nature Bow will be randomly created.
If the combination fails, all items and zen used in the combination are lost or the level and option of the item(s) may drop randomly.

Wings and Capes creation:

First Stage Wings creation:

Talk with the Chaos Goblin in Noria at coordinates 180, 100.
Select the option Regular Combination.
In the 8 x 4 Chaos storage area, place:

One (1) or more Level 4 (minimum)+Option 4% (minimum) Chaos item(s)

One (1) or more Jewel(s) of Chaos

Appropriate amount of Zen needed
Maximum success rate is 100%.
After confirming success rate, press the Combining button.

If the combination succeeds, one Heaven Wings, Satan Wings or Elf Wings will be randomly created.
If the combination fails, all items and zen used in the combination are lost.

Second Stage Wings creation:

Talk with the Chaos Goblin in Noria at coordinates 180, 100.
Select the option Regular Combination.
In the 8 x 4 Chaos storage area, place:

One (1) First Stage Wing

One (1) or more Jewel(s) of Chaos

One (1) Loch's Feather

Appropriate amount of Zen needed
Maximum success rate is 90%.
After confirming success rate, press the Combining button.

If the combination succeeds, one ArchAngel Wings, Devil Wings, Spirit Wings or Darkness Wings will be randomly created.
If the combination fails, all items and zen used in the combination are lost.

Cape of Dark Lord creation:

Talk with the Chaos Goblin in Noria at coordinates 180, 100.
Select the option Regular Combination.
In the 8 x 4 Chaos storage area, place:

One (1) First Stage Wing

One (1) or more Jewel(s) of Chaos

One (1) Crest of Monarch

Appropriate amount of Zen needed
After confirming success rate, press the Combining button.

If the combination succeeds, one Cape of Dark Lord will be created.
If the combination fails, all items and zen used in the combination are lost.