The 'Open Box' tab on the wiki page does not show all obtained items at the moment. In fact this capsule gives the full armor set in-game.
|+10 Eternal Robe Capsule RU|
|Double-click to obtain Bloody Eternal robe set enchanted to +10.|
|Base price:||0 adena And what is the actual price?|
|Cannot be: exchanged, dropped, sold in a private store, sold in a public store, sold in the Auction, stored in a clan warehouse.|
In the current version of the game it's impossible to obtain the item as drop or using Spoil.
When you open the box you can get the following items:
|Eternal Sigil Robe +10||1|
|+10 Eternal Robe Capsule - Related Pages