So, that's everything there is to know about monetisation in Diablo 4's Shop. Be sure to check out our Diablo homepage for the latest news and guides, or visit our Diablo 4 Battle Pass page for a more in-depth breakdown of what we know about the upcoming feature Diablo 4 Gold.

Fiend Roses are mainly found during Diablo 4 Helltide events, which occur when you reach World Tier Level 3 or higher. Helltide events are special occurrences that happen randomly in different regions of Sanctuary. 

During Helltide, some plants in Sanctuary will change into Fiend Roses, and you can collect them. They look like red roses with thorns and have a purple glow around them. They are not very common, so you might have to explore the whole area to find them.

Besides this, the landscape also changes into a hellish version of itself, with blood-red skies, fire and brimstone, and hordes of demons. These events also have unique objectives and rewards, such as Tortured Chests and Aberrant Cinders.

Alternatively, you can also get Fiend Roses in Diablo 4 from Tortured Chests or Silent Chests, but these require special keys and currencies to open. Tortured Chests are large chests that appear on the map during Helltide events. 

Once you have collected some Fiend Roses, you can use them at the Occultist or the Alchemist to enhance your items or potions. The Occultist is a vendor that can enchant your items by re-rolling their affixes buy Diablo IV Gold. You need one Fiend Rose per item that you want to enchant.