PoE 2: Regeneration Explained

Regeneration is a resource recovery mechanic in Path of Exile 2.

What is Regeneration?

Regeneration refers to a recovery mechanic that recovers an amount of a resource over time. Many modifiers that provide Regeneration will do so in increments per second, or by modifying the base Regeneration in the case of Mana. For example the Relentless Passive Tree Notable grants the modifier 'Regenerate 0.5% of maximum Life per second'. Unlike Leech, Regeneration is a continuous recovery mechanic that's not removed when a resource is full.

Note: the majority of Life Regeneration modifiers found on gear pieces are 'flat' Regeneration such as the implicit modifier on a Crimson Amulet, adding a set amount of Regeneration per second rather than scaling from maximum Life.

Regeneration is most commonly applied to Life or Mana, but can also be applied to Energy Shield, Rage and other resources or stats.

Note: Regeneration is not Recoup, Recharge or Leech, and is not affected by specific modifiers to these other recovery mechanics. The recovery from Flasks is also not considered to be Regeneration.

Base Regeneration

Both Life and Energy Shield do not have any base Regeneration by default. All Regeneration for these resources must be acquired from modifiers on the Passive Skill Tree, on gear or elsewhere. However, Mana has a base Regeneration of 4% of maximum Mana per second.

Any modifiers that add a flat amount of Regeneration or Regenerate a percentage based on a maximum resource are added together to form the base Regeneration for that resource. For example a character with 1200 maximum Life that's using a Rondel de Ezo and has Hard to Kill allocated would gain 5 flat Life Regeneration from the Unique Buckler, and a further 9 Life Regeneration from the Notable for a total 14 base Life Regeneration.

Some of the largest sources of flat Life Regeneration appear on crafted Body Armours, that can roll up to '36 Life Regeneration per second' on a Tier 1 modifier. Meanwhile the Smith of Kitava Warrior ascendancy has access to one of the largest sources of percent based Life Regeneration in the form of the Leather Bindings Notable, however making use of this node forces the use of a normal rarity Body Armour.

In the case of Mana, you can acquire very rare modifiers that add directly to the base Mana Regeneration.

Note: modifiers that scale from a maximum resource do not account for any excess resource resulting from Overflow.

Multipliers to Recovery from Regeneration

Regeneration-specific Multipliers

Several different types of modifiers can scale the base Regeneration for Life, Mana or other resources. These include modifiers that only apply to Regeneration, but can also be modifiers that scale any source of recovery for a particular resource.

Many of the common modifiers to Mana Regeneration will scale the base Regeneration rather than adding to it. For example Sturdy Mind increases Mana Regeneration by 14%, effectively scaling the base 4% Mana Regeneration to 4.56% (4 * 1.14).

There are also modifiers that scale base Life Regeneration, such as Resilient Soul. Some much rarer modifiers also exist that provide more Regeneration for a specific resource, for example the Arcane Surge Buff that provides '20% more Mana Regeneration Rate'. Like any other more multipliers in the game, these are applied multiplicatively and are not additive with any increases to the same stat.

Multipliers to all Sources of Recovery

You can also obtain much rarer modifiers that scale all forms of recovery for a particular resource, known as Recovery Rate modifiers, for example Hale Heart or Soul Bloom. These modifiers are applied as a separate multiplier to the total recovery of a resource resulting from all forms of recovery including Leech, Regeneration, Flask Recovery or Recharge.

Zealot's Oath

The Zealot's Oath Keystone applies Life Regeneration to Energy Shield when that recovery cannot be applied to Life, for example when on Full Life. Importantly, the recovery applied this way is the exact amount of recovery that would have been applied to Life, rather than modifying the amount to adjust for Energy Shield scaling.