Diablo IV: How to Use War Plans and Pick Best Chaos Perks

Treat War Plans as a routing system, not a fast-travel button. In Diablo IV: Season of Infernal Chaos, the cleanest endgame loop is to seal Rift objectives early for Infernal Warp upgrades, slot three non-Unique Chaos Perks plus one Unique, and only spend big Aether on the optional Bartuc fight once your build can already wipe elite packs without burning potions. This is the endgame layer that ties together your Rifts, wave content, Aether spending, and Chaos Perk scaling.

The short version

• Seal Rifts first. Sealing them feeds Infernal Warp, the currency that upgrades your Chaos Perks, and those upgrades carry across every later run.
• Equip three non-Unique Chaos Perks (Magic, Rare, or Legendary) plus one Unique perk. Build around one resource stabilizer and one damage payoff, not four damage rolls.
• Farm Aether in safer runs, then choose your Infernal Hordes ending: the standard Fell Council for consistency, or the optional Bartuc fight (666 Aether per player) for higher-risk Chaos gear.
• Activate Chaos Offerings only when your AoE clear and sustain can handle the extra danger they add.

How War Plans work in Diablo IV endgame

War Plans, called Kriegspläne in the German localization, bundle endgame activities into a directed playlist of up to five activities. Instead of jumping randomly between farming, Rifts, and boss attempts, you follow a route with choices that scale both difficulty and rewards. The route matters almost as much as your build, which is what makes the loop feel more roguelite than the old endgame menu.

War Plans are not only about loot. They also feed your Chaos Perks, the modifiers that replace older seasonal powers and add real strength with real trade-offs. That trade-off design is exactly why routing matters: a strong route gives you the Infernal Warp and upgrade pace to offset the downside on your perks, instead of leaving you with a build that hits hard but runs dry on mana, fury, or essence. If you want the broader fast-power picture, see our Infernal Chaos power-leveling guide.

The best first route: seal Rifts before chasing loot

The most common early mistake is chasing your flashiest node first. Rifts come before greed. Sealing them feeds Infernal Warp, which upgrades your Chaos Perks, and those upgrades are permanent value across every later War Plan run. Skip that and sprint into heavy-reward branches, and you end up with weaker perk scaling and a shakier build once difficulty ramps.

After Rift progress, move into content you can control well, then push into the wave-based part of the loop. Infernal Hordes is where the risk-reward design pays off. Activating Chaos Offerings raises the danger, but if your build has reliable AoE clear and enough sustain, those offerings snowball your rewards far faster than playing every branch safely. If your build is still clunky, stay conservative until elites stop feeling dangerous.

How to spend Aether without wasting your run

Aether is where War Plans turn into a real decision. At the end of an Infernal Hordes run you choose your final encounter: the standard Fell Council, or the optional Bartuc fight, which costs 666 Aether per player to open his chamber and is where the higher-risk Chaos gear chase begins. The first player to choose locks the option for the whole party, so coordinate before you commit.

• Take the Fell Council if your clear speed is decent but elite packs still force defensive play.
• Take Bartuc if your build erases elites quickly, your survivability is stable, and you are specifically targeting stronger Chaos drops.

A lot of players treat Bartuc as mandatory. He is not. Bartuc is the correct choice only when your build is already strong enough to convert that risk into loot efficiency. If the fight or the elite lead-up slows you down too much, the standard Fell Council ending wins out over multiple runs. When you are ready to farm those drops directly, our Chaos Uniques farm guide covers the most efficient routes.

How Chaos Perks work and how to build them

Chaos Perks are the seasonal talent layer for Season of Infernal Chaos. You can equip up to three non-Unique perks across Magic, Rare, or Legendary tiers, plus one Unique perk. There are shared general perks and class-specific options, with four perks available per class. The trap is assuming every perk is free damage. The strong ones ask you to trade damage uptime, passive resource flow, or pacing for a much stronger payoff window.

The rule that holds across every class is to pair one stabilizer with one major payoff:

• Stabilizer perk: something that fixes your resource economy or survivability, so your spender stays online during long farming chains. A small Basic-damage penalty barely matters if it keeps your main rotation running.
• Payoff perk: a swingy burst, auto-Crit, or Overpower effect that rewards good timing. These are strongest once your build already has reliable status application or multiple damage types feeding dense content.
• Your Unique perk: usually the highest ceiling, but the most demanding. The build-defining Unique perks reshape your rotation rather than slotting in cleanly, so only run one if your bar and gear are built around it.

Stack only damage perks and your build looks great on the tooltip and awful inside real War Plans, because resource starvation and cooldown gaps get you killed. One stabilizer plus one payoff is the spine of almost every smooth endgame setup.

For class-by-class picks and where each class lands this season, see our Lord of Hatred class tier list rather than locking your perks before you know your engine.

Common mistakes that make War Plans feel worse than they are

• Taking Bartuc too early: the 666-Aether risk only pays off when your build is already stable.
• Ignoring Rift upgrades: short-term loot greed slows your Infernal Warp scaling.
• Stacking perk downsides: two or three resource penalties at once quietly ruin a build.
• Activating Chaos Offerings too soon: the extra danger only pays off when your AoE clear and sustain can absorb it.
• Pushing difficulty for the reward preview: only move up when trash clear, elite time-to-kill, and potion usage all feel under control.

Practical takeaway

Once the loop clicks, the Season of Infernal Chaos endgame stops feeling random and becomes targetable: seal Rifts first for Infernal Warp, build one stabilizer plus one payoff perk, farm Aether in runs you control, and only spend on Bartuc when your build is ready to cash the risk in. Everything else is just following your own route instead of the table’s.