As the World of Warcraft: Midnight beta begins and players turn their attention to the new expansion, you might need to continue farming those 
Resonance Crystals for when it begins, as it looks like some delve rewards bought using 
Undercoin will use crystals in Midnight. Time to get that 
OC91 Chariot mount!
Players have been farming Resonance Crystals to collect transmogs, toys, and mounts from different vendors in the War Within. Heading into Midnight, the list of things you can buy with crystals will grow. Reno Jackson will be selling mounts, toys, and transmogs that used Undercoin, but allowing you to buy them with Resonance Crystals instead. Take a look at a few of the screenshots below.
If you haven’t had a chance to farm Undercoin yet and get your collections, you don’t have to worry! Resonance Crystals are here to help you finish those collections.
