PoE2 Aura Reservation Calculator Guide
Plan Path of Exile 2 aura reservation with a Spirit budget, compare active buffs, and avoid overreserved setups.
Quick Answer
Auras should be ranked by the build problem they solve, then tested against total Spirit so optional effects do not push the setup over budget.
Search intent
Plan aura packages against a fixed Spirit budget.
Path of Exile 2 mechanics can change after balance patches. Treat this page as a planning aid and recheck important values in game after major updates.
Auras should compete for a limited budget
Spirit makes aura planning a budgeting problem. The best setup is rarely every possible aura at once; it is the set of reservations that solves the build's most important problems.
Before adding a new aura, decide whether it improves damage, defense, consistency, or quality of life enough to justify the reserved Spirit.
Build around the reservation package, not the other way around
If a build requires several persistent effects to function, enter those reservations in the calculator before judging gear upgrades.
This prevents a common mistake: buying an item that looks strong for raw stats but leaves the character short on Spirit for the planned aura package.
Keep a backup version for progression
A final build may support a full aura package, while a campaign or early mapping version may only support the most important effects.
Use the planner to maintain both versions. A realistic progression setup is easier to play than a perfect setup that cannot be activated yet.
Recheck after support and balance changes
Aura reservation can be affected by gem choices, supports, and future balance updates. When something changes, rebuild the active reservation list instead of assuming old math still applies.
The safest habit is to refresh the calculator after every major patch or league update.
FAQ
How many auras should I run in PoE2?
Run the auras that your Spirit budget can support while still solving the build's main damage and defense needs.
Why does an aura setup become overreserved?
The total cost of active reservations is higher than total Spirit. Remove a lower-priority effect or add enough Spirit to cover the package.
Plan the setup
Compare the general reservation guide, then test the package in the checklist or full planner.