WHERE & HOW TO FARM Where to farm Key rewards may come from Helltides, World Bosses, Legion Events, War Plans and Tree of Whispers caches; lairs are marked on the map.
Collect keys through endgame activities, then use each one only after matching it to a useful boss. Keys open a Hoard after the fight; they are not used to begin the encounter. Key sources include Helltides, World Bosses, Legion Events, War Plans and Tree of Whispers caches, though a particular activity does not promise a key on every completion. Torment I or higher is required to claim Lair Boss Hoards.
Before you go Torment I or higher for Hoard claims. Access to one or more listed endgame activities. A boss whose displayed reward pool is useful to your character. Check your inventory and identify which Lair Keys you have. Choose an activity from the available key sources that you can complete efficiently. Finish that activity and collect any key it actually awards. Open the map and inspect boss lair details to match your key with a target pool. Travel to the lair and defeat the boss; do not spend the key to start the encounter. Use the matching key on the Hoard and collect its reward. Farming tips Save keys for bosses whose pools contain useful rewards for your build. In group play, plan each player’s own key supply and Hoard claim. Repeat, collect and use Repeat key-producing activities as needed. This is a renewable endgame loop, but individual activities do not guarantee a key each time.
Common mistakes Trying to use a key to start the fight: defeat the boss first, then open its Hoard. Farming an irrelevant boss: inspect its reward pool before traveling. Attempting a Hoard below Torment I: reach the required difficulty before building a key stockpile. When to stop or switch Stop when you have enough keys for planned Hoards or obtain the target; move to the activity that supplies your next bottleneck.
Sources & fact checks REWARD DETAILS & CONDITIONS Sources & rewards All source types Farming route Farming priority Name A–Z Drop chance
Farming route Key rewards may come from Helltides, World Bosses, Legion Events, War Plans and Tree of Whispers caches; lairs are marked on the map.
Torment I or higher for Hoard claims. Access to one or more listed endgame activities. A boss whose displayed reward pool is useful to your character. Rate not listed
Related guides More guides for gathering materials and making progress.
Guide illustration Diablo IV Lair Bosses and boss rewards The Tribute of Titans focuses the Undercity end chest on boss-summoning materials for Lair Boss progression.
Guide illustration Diablo IV Lair Bosses and boss rewards The Blood Maiden is a repeatable Helltide encounter that pays general equipment and material rewards.
Guide illustration Diablo IV Lair Bosses and boss rewards Greater Lair Keys progress players from Initiate boss Hoards toward the next tier of Lair Boss rewards.
Guide illustration Diablo IV Lair Bosses and boss rewards Helltide Commanders appear at the end of some local events, giving you a reason to finish event waves while gathering Helltide…
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