Diablo 4 Season 15 War Plans work best when you choose a reward first and build the route around it. Chasing XP, Glyph upgrades, crafting materials, and Mythics in the same plan can leave you with plenty of drops but little progress on the piece your build needs. Before picking activities, check which Diablo 4 Items you're still missing, then decide whether your next session is about levels, resources, or gear.

How Do War Plans Work in Diablo 4 Season 15?

War Plans let you chain endgame activities and choose reward paths, while activity trees change what happens inside those activities. The available modes include Helltide, Kurast Undercity, Nightmare Dungeons, Lair Bosses, The Pit, and Infernal Hordes. Whispers can progress alongside them rather than taking an activity slot. ([news.blizzard.com]( That distinction matters: a good route does more than connect content you enjoy. It pairs the activity you can clear reliably with nodes that pay out what you need. Check the whole path before committing to a reward that looks tempting but pulls you away from your goal.

Which War Plans Activities Are Best for XP?

Start with Kurast Undercity if your build can move through it cleanly. Jade Epiphany makes experience orbs more appealing, while Finely Tuned Pathfinder and Endless Storm support faster beacon progression. Once the boss portal opens, collect the orbs you can reach efficiently and finish the run; clearing every remaining enemy can turn a quick loop into a slow one.

Helltide is the more flexible XP choice when you also need Cinders, Forgotten Souls, or Lair Keys. Season 15 increased War Plans experience rewards, including rewards from experience-focused nodes, so those choices deserve another look even if you previously built around other payouts. ([news.blizzard.com]( The practical test is your clear speed. If your Undercity runs stall or Helltide keeps offering useful side rewards, choose the route that produces steady progress rather than the one that looks strongest on paper.

How Should You Farm Materials and Lair Keys?

For a character that still needs crafting work, pair Helltide with Nightmare Dungeons. Helltide gives you several reasons to stay in the zone, and its activity tree can push toward faster Cinder collection or boss-related rewards. Nightmare Dungeons make more sense when materials are the main target, particularly if you've invested in the Escalation path. Season 15 also added War Plans support for longer Helltides and Nightmare Dungeon Escalation Sigils. ([news.blizzard.com](

Don't treat every dungeon branch as interchangeable. The Treasure Goblin side is an opportunity play; the baseline loot and Escalation options serve a more deliberate material run. Pick the branch that fixes your current shortage. If you need Lair Keys, keep Helltide in the rotation instead of filling the entire plan with dungeons and hoping the keys turn up elsewhere.

Which War Plan Route Helps You Find Mythics?

Give Lair Bosses more space once your build can finish the fights consistently. Their activity tree supports boss-focused rewards, and boss encounters can also enter other activities through War Plans customization. ([news.blizzard.com]( That makes a boss route more useful when the rest of your plan supplies the keys and materials to keep it moving. A fast boss kill isn't much of a farming loop if you spend the next session rebuilding your supply.

Keep your reward nodes aligned with that loop: keys and useful materials often do more for a Mythic hunt than another ordinary gear payout. If your character still struggles with bosses, build up through Helltide or Nightmare Dungeons first. More attempts only help when you can complete them at a comfortable pace.

Is The Pit or Infernal Hordes Worth Running?

The Pit earns its place when Glyphs are holding your build back. Chrono's Blessing and extra upgrade opportunities can make each clear count, but pushing a tier that takes too long works against a War Plan built for repeated runs. Drop to a difficulty you can finish smoothly, take the Glyph progress, and move on.

Infernal Hordes need a more specific reason. Their longer runs can be worthwhile for rewards tied to their encounters, but they're harder to fit into a quick XP or material rotation. That isn't a verdict on the activity itself. It's a reason to leave it out when its payout doesn't match what you're farming tonight.

How Do Whispers Fit Into War Plans?

Whispers are the extra layer, not a separate stop you need to force into every route. They can overlap with your selected activities and still earn activity progression. ([news.blizzard.com]( Check the Tree of Whispers activity tree for the reward path that suits you, then complete nearby Whispers while doing work you already planned. Going far out of your way for a small objective can erase the time you saved with the rest of your route.

Final Thoughts

Build your next Diablo 4 War Plan around one immediate need: Undercity or Helltide for XP, Helltide and Nightmare Dungeons for resources, Lair Bosses for a focused gear hunt, or The Pit for Glyphs. Run that route long enough to see where progress slows, then change the activity mix. Keep upgrade costs in mind as you spend materials or consider whether to buy Diablo IV Gold for your next round of build work. Your next step is simple: pick the reward you need most and make every activity in the plan support it.