Loss

Loss is a catch-all term for negative changes to resources, primarily life, mana, and energy shield. It can be considered the opposite of recovery.

Mechanics

Loss is fundamentally not limited to specific mechanics. It is not necessarily caused by damage, and damage does not necessarily cause loss (e.g. Ward, Dissolution of the FleshDissolution of the Flesh
Crimson JewelLimited to: 1Removes all Energy Shield
Life that would be lost by taking Damage is instead Reserved
until you take no Damage to Life for 2 seconds
(20-30)% more Maximum Life"We awoke to a sudden dawn cresting through the mountains.
Each peak rose into searing fire, a massive roiling tide.
A great eye gazed upon us, and we became known - utterly."Place into an allocated Jewel Socket on the Passive Skill Tree. Right click to remove from the Socket.).

Examples of non-damage loss:

• Resources spent to pay a cost
• Reservation (if maximum is lowered below current)
• Over-time loss from Petrified BloodPetrified BloodSpell
  Level: (1-20)
  Reservation: 35% Mana
  Cooldown Time: 1.00 sec
  Can Store 1 Use(s)
  Cast Time: InstantRequires Level 24Applies a buff that protects the lower half of your life, preventing some of the immediate life loss when damaged by hits and applying the loss over time instead. Your life cannot be raised above low life other than by flasks, and while above low life, skills will cost life as well as mana.Life Recovery other than Flasks cannot Recover Life to above Low Life
  When taking Damage from Hits, 40% of Life loss below half Life is Prevented, then (100-81)% of Life loss prevented this way is lost over 4 seconds
  Skills gain a Base Life Cost equal to 40% of Base Mana Cost while not on Low Life
  
  Additional Effects From 1-20% Quality:
  -(0.25-5)% of Life loss prevented is lost over 4 secondsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. or ProgenesisProgenesis
  Amethyst FlaskLasts (4.23-8.78) Seconds
  Consumes (28-31) of 65 Charges on use
  +35% to Chaos ResistanceRequires Level 60(20-10)% reduced Charges per use
  (-35-35)% increased Duration
  When Hit during effect, 25% of Life loss from Damage taken occurs over 4 seconds insteadThey were bred in a cosmic ocean of raw creation.
  Feasting and drinking of the milk of the mother,
  they fought to the death for every last drop.Right click to drink. Can only hold charges while in belt. Refills as you kill monsters.
• Removes 15% of Mana Recovered from Life when used mana flasks
• Sacrificing with Dark PactDark PactMinion, Spell, AoE, Chaining, Chaos, Nova
  Level: (1-20)
  Cost: (7-13) Mana
  Cast Time: 0.50 sec
  Critical Strike Chance: 5.00%Requires Level 28This spell removes some life from one of your Skeleton minions near you or the targeted location to deal chaos damage in an area around it. This effect will chain to your other nearby skeletons. If you have no skeletons near you or the targeted location, it will sacrifice your own life to deal damage instead.Deals (24-241) to (36-362) Chaos Damage
  Sacrifices 8% of Skeleton's Life to deal that much Chaos Damage
  Chains +2 Times
  Uses your Life if no Skeletons in range
  (56-136)% more Damage with Hits and Ailments if using your Life
  
  Additional Effects From 1-20% Quality:
  Sacrifices +(0.1-2)% of Skeleton's Life to deal that much Chaos DamagePlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. or Rathpith GlobeRathpith Globe
  Titanium Spirit ShieldChance to Block: 25%
  Energy Shield: (147-200)
  Movement Speed: -3%Requires Level 68, 159 Int(10-15)% Chance to Block Spell Damage
  (120-160)% increased Energy Shield
  10% increased maximum Life
  Sacrifice 10% of your Life when you Use or Trigger a Spell Skill
  5% increased Critical Strike Chance for Spells per 100 Player Maximum Life
  5% increased Spell Damage per 100 Player Maximum LifeThe Vaal emptied their slaves of beating hearts,
  and left a mountain of twitching dead.
• Spending a resource for an effect like Arcane Cloak
• Temporal RiftTemporal RiftSpell
  Level: (1-20)
  Reservation: 10% Mana
  Cooldown Time: 5.00 sec
  Can Store 1 Use(s)
  Cast Time: 0.25 secRequires Level 34Reserves mana to apply a buff and leave afterimages of your recent past. Cast the spell again to return to the oldest afterimage, teleporting to that location as well as resetting your Life, Mana and Energy Shield to the values they had then.(0-38)% increased Cooldown Recovery Rate
  Buff makes you Unaffected by Temporal Chains
  This Spell's Cast Speed cannot be modified
  
  Additional Effects From 1-20% Quality:
  Buff causes Debuffs on you to expire (1-20)% fasterPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. (if it rewinds a resource to a lower value)
• Inherent Rage loss

Loss from non-damage sources does not hit, cannot be modified by defensive stats, and does not interrupt recharge.

Loss does not necessarily need to originate from damage to kill the player. Life-removing mana flasks can remove all life (outside a hideout). However, sacrificing cannot.

Loss determines whether a hit is savage.

Over-time loss is tracked partially. It's possible to lose 1 life over a duration.

Interactions with recovery

Recovery and loss are normally distinct modifications. When the same event causes both loss and recovery, they are not totalled and applied together; they modify your resources individually, in an order appropriate for the effects involved. (Except Gluttony of Elements.)

When over-time loss and over-time recovery occur together, loss is always handled second.

• Resources count as Full if they recovered to full at the start of a server frame, even if some of that resource is immediately lost afterward.
  • A 1000 life player with 1000 over-time recovery and 800 over-time life loss (in one server frame) will effectively start every server frame with 200 life remaining. They will count as full life for relevant stats, and be on low life in practice. If loss per frame exceeds maximum life, the player will die, regardless of recovery.
• Players using Petrified BloodPetrified BloodSpell
  Level: (1-20)
  Reservation: 35% Mana
  Cooldown Time: 1.00 sec
  Can Store 1 Use(s)
  Cast Time: InstantRequires Level 24Applies a buff that protects the lower half of your life, preventing some of the immediate life loss when damaged by hits and applying the loss over time instead. Your life cannot be raised above low life other than by flasks, and while above low life, skills will cost life as well as mana.Life Recovery other than Flasks cannot Recover Life to above Low Life
  When taking Damage from Hits, 40% of Life loss below half Life is Prevented, then (100-81)% of Life loss prevented this way is lost over 4 seconds
  Skills gain a Base Life Cost equal to 40% of Base Mana Cost while not on Low Life
  
  Additional Effects From 1-20% Quality:
  -(0.25-5)% of Life loss prevented is lost over 4 secondsPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. do not count as leaving Low Life if over-time recovery causes them to leave low life, and over-time loss causes them to immediately return to it.