The World Shop will open during the days in which Arena is taking place. All the proceeds from this shop or should I say auction will then be redistributed to the population of both servers that are participating in the arena that day. There are only a few items in this shop that are going to be for sale and most of them have a very steep garnet price. That being said, here we will discuss what you need to prioritize in order to gain a better advantage over the rest of the arena participants.
The chests you can pick up from this shop are going to be very expensive in the garnet department but it is a necessary cost to progressing your crusade set. These chests will vary in prices but usually average around 100,000 garnets each and contain 10 fragment pieces for your chosen piece.
Hekaton Markings are going to be a nice pick up when you have the garnets because you can use them to upgrade any of you Seasonal Arena Rings.
Typically with the wing materials you will find here it will only be the Flame of Condor which is just fine. These wings if crafted successfully can bring you in a lot of garnets from the Mysterious Merchant or you can help out fellow guild mates by selling them to them at a discounted price.