How to Complete The Fields of Ruin in Diablo 4 guide
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Diablo 4: Fields of Ruin Quest Walkthrough Guide

Here's how to complete the Fields of Ruin side quest in Diablo 4.

The Diablo 4 Fields of Ruin quest is available when you first arrive at The Downs area. You’ll need to place some ward stones and kill a quest boss to mark it off your list, but the quest description doesn’t tell you exactly where to go. Here’s our complete guide for how to complete the Fields of Ruin side quest in Diablo 4.

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How to Complete The Fields of Ruin in Diablo 4

If you want to complete the quest by yourself and with a little less guidance, here are the main points and the quest rewards. I go into greater detail in the walkthrough below.

  • Talk to Phelan in Blycroft to pick up the quest.
  • Pick up the wardstones next to Phelan’s house.
  • Place the three wardstones.
  • Draw out Blackhorn.
  • Defeat Blackhorn.
  • Deliver Blackhorn’s head to Phelan.
  • Quest Rewards: Item cache, gold and XP tailored to your level, and +20 Scosglen renown

Fields of Ruin Quest Walkthrough

How to Complete The Fields of Ruin in Diablo 4 guide Phelan map location
Screenshot by GameSkinny

To start the Fields of Ruin quest, you’ll need to talk to Phelan in the Blycroft area. The quest is immediately available when entering the area and requires no prerequisites. He’ll ask for your help; there have been attacks throughout the fields, and you’ll need to place protective wardstones to stop them.

After you pick up the quest, gather the wardstones directly next to Phelan’s house. A marker will appear on your main map and mini-map indicating their locations.

Where to Place the Wardstones in Fields of Ruin

How to Complete The Fields of Ruin in Diablo 4 guide three wardstone locations
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Once you have the wardstones, it’s time to place them. You’ll see search areas appear on your map, but the exact locations remain a mystery. I found the first wardstone location at the southwest corner of the west field. The remaining two are on the north and southeast corners of the east field.

How to Complete The Fields of Ruin in Diablo 4 guide how to place a wardstone
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Simply interact with the placement area to successfully place the wardstone. After all three wardstones are placed, you’ll need to draw out Blackhorn. It’s time to get ready for a fight.

Where to Find Blackhorn
How to Complete The Fields of Ruin in Diablo 4 guide Blackhorn location on map
Screenshot by GameSkinny

You’ll see a new search area appear on your map, and Blackhorn will be found within it. To get Blackhorn to appear, you’ll need to slay the Blood Clan Khazra until you’ve filled the progress bar on the right side of your screen. Once it’s completed, Blackhorn will appear as a boss symbol on your map. Go to Blackhorn’s location and defeat him to collect his head for Phelan.

How to Complete The Fields of Ruin in Diablo 4 guide Blackhorn fight
Screenshot by GameSkinny

Blackhorn is Fire Enchanted and Explosive, so you can expect to take some fire damage from the fight. There’s a healing well in the area if you need to refill your potions for the fight. After you eliminate Blachorn, the head will drop as loot. Return to Phelan and deliver Blackhorn’s head to complete the quest. Your rewards are an item cache, gold, and XP tailored to your level, and +20 Scosglen renown.

That’s all there is to know for completing the Diablo 4 Fields of Ruin quest. For additional tips, tricks, and more, check out our Diablo 4 guides hub.


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Author
Maddison Ahlbrand
Maddison started her gamer journey traversing the lands of Runescape and World of Warcraft. These days, she can be found playing just about anything, but a lot of her free time is spent playing FPS games like Fortnite, CoD and Valorant. She's been with GameSkinny since February 2023, and has a BA in Art History.