Premium Trading is a shop in the MCC Island hub. It is the go-to place to spend your gems for all kinds of items. The shop's merchant - Merchant Barney - only accepts 
Gems as a currency. Premium Trading's Stock is constant, meaning it doesn't restock at all. Players can buy items infinitely, provided they have enough currency.
Stock Table[edit]
Merchant Barney has the following items in stock:
| Item | Cost |
|---|---|
 Bronze Treasure Chest
|
50
|
 Silver Treasure Chest
|
150
|
 Golden Treasure Chest
|
450
|
 Magical Material Crate
|
50
|
 Mechanical Material Crate
|
50
|
 Natural Material Crate
|
50
|
 Oceanic Material Crate
|
50
|
 Common Cosmetic Crate
|
10
|
 Uncommon Cosmetic Crate
|
30
|
 Rare Cosmetic Crate
|
75
|
 Epic Cosmetic Crate
|
150
|
 Legendary Cosmetic Crate
|
250
|
 Mythic Cosmetic Key
|
750
|
 Legacy Key
|
350
|
 Mystery Relic Crate
|
60
|
 Prismatic Chroma Pack
|
200
|
 Rare Quest Scroll
|
10
|
 Epic Quest Scroll
|
20
|
 Legendary Quest Scroll
|
35
|
 Task Reroll Token
|
3
|
 Quest Refresh Token
|
10
|