In Path of Exile 3.28 (Mirage), the Incursion (Alva) Atlas passive tree focus remains on efficiently generating "Double Corruption" temples (Doryani's Institute and Locus of Corruption) for high profit. The 3.28 patch introduced a significant Atlas Rework and the removal of Chisels, which shifted some node locations, though the core Incursion mechanics remain consistent.
Incursion Atlas Tree
Count
Name
Category
Description
10
Incursion Chance
Normal
Your Maps have +8% chance to contain Alva
Scarabs dropped in your Maps have 8% increased chance to be Incursion Scarabs
1
Treasure Hunt
Notable
Incursions in your Maps contain Cursed Treasures
(Cursed Treasure can be claimed for valuable rewards, but doing so will lose time while in Incursions)
Incursion Atlas Tree
Count
Name
Category
Description
4
Incursion Pack Size
Normal
Incursions in your Maps have 5% increased Pack Size
1
Vaal Oligarchs
Notable
Incursions in your Maps contain a Vaal Flesh Merchant
1
Artefacts of the Vaal
Notable
Your Maps with Incursions always have four Incursions
Incursion Atlas Tree
Count
Name
Category
Description
1
Time Dilation
Notable
Incursions in your Maps have 33% chance for all Monsters to be at least Magic
Time gained from Kills is Doubled for Incursions in your Maps
Incursion Atlas Tree
Count
Name
Category
Description
1
Just in Time!
Notable
Your Maps have +20% chance to contain Alva
Scarabs dropped in your Maps have 20% increased chance to be Incursion Scarabs
Incursion Atlas Tree
Count
Name
Category
Description
1
Incursion Upgrade Chance
Normal
Killing non-resident Architects in your Maps has 10% chance to add an additional Upgrade Tier to the surviving Architect's Room
(Non-resident Architects are those that can be killed to upgrade the Incursion room)
1
Resource Reallocation
Notable
Killing non-resident Architects in your Maps has 40% chance to add an additional Upgrade Tier to the surviving Architect's Room
(Non-resident Architects are those that can be killed to upgrade the Incursion room)
1
Contested Development
Notable
Killing resident Architects in your Maps adds their Upgrade Tier to the surviving Architect's Room
(Resident Architects are those that can be killed to change the Incursion room)
Quick Incursion Tips
Priority Rooms: Always prioritize Locus of Corruption (Corruption Chamber tier 3) and Doryani's Institute (Lapidary Lens tier 3) as these sell for the most currency to other players.
Speed Management: Incursion is considered a "fast" mechanic. Pairing it with other fast mechanics like Essence or Shrines is recommended for efficient mapping.
Respecs: If you need to change your tree, you can now use Gold to respec Atlas points through Commander Kirac.
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