Codex of Power Aspects

The Codex of Power is a collection of Legendary Aspects you can imprint on your items at the Occultist to get your character started. You can imprint these Aspects onto rare or legendary items. They offer you a baseline selection of effects after you have completed specific Dungeons located around Sanctuary.

Check out our Occultist Overview to learn more about how legendary Aspects and imprinting work.

Imprinting with the Codex

The main advantage of the Codex is that it's relatively easy to simply complete a Dungeon once to unlock it versus finding the right item you're looking for. While all of this sounds amazing, the Codex does have some limitations that mean finding a legendary item will almost always be better than using a Codex Aspect. Later on taking your character to the max will require unleashing your terrible power upon the enemies of Sanctuary to unearth their wealth!

All information in this article is from the Press Preview Access of Diablo 4. The content presented here is subject to change, and will be updated as we learn more.

Codex of Power Aspect Limitations

  1. Not Every Legendary: The Codex of Power doesn't have every single Aspect from each Legendary in the game in it. This means you can only find some Legendaries the good old fashion way - by destroy hordes of the demons of hell over and over again!
  2. Lowest Roll Imprinted: Aspects that are Imprinted from the Codex of Power automatically Imprint the lowest roll possible! For example, if you wanted to Imprint "Thorns damage dealt has a [20-40]% chance to deal damage to all enemies around you.", then it would automatically Imprint 20% chance. That's half the power of a full max roll!

Check out our Legendary Aspects Overview to see all other Aspects not covered by the Codex.

Aspect Categories

Not all Aspects can be Imprinted to just any Rare or Legendary Item. Aspects are divided by category, and depending on its category it can be Imprinted on different slots. This forces you to think a little more deeply about your build instead of just putting every damage multiplier you can find on all your items.

  • Offensive: Gloves, 1H Weapon, 2H Weapon (+100% Effectiveness), Ring, Amulet (+50% Effectiveness)
  • Defensive: Helm, Chest, Pants, Amulet (+50% Effectiveness)
  • Resource: Helm, Ring, Amulet (+50% Effectiveness)
  • Utility: Helm, Chest, Boots, Gloves, Amulet (+50% Effectiveness)
  • Mobility: Boots, Amulet (+50% Effectiveness)

Note that the Codex always imprints the minimum value and does not display the maximum possible for an Aspect. We were able to confirm some values from drops that show the ranges but most are unknown. In addition, certain flat value powers scale either with character level or item power.

All Classes - Codex of Power Aspects

DisobedienceDefensiveEnemies afflicted with a damage over time effect deal [20-?]% less damage to you.
Edgemaster'sOffensiveSkills deal up to x[24-?]% increased damage based on available resource when cast, receiving the full benefit while at full resource.
GhostwalkerMobilityYou may move freely through enemies while below [40-?]% total Life.
Inner CalmOffensiveDeal [3.0-10]% increased damage for each second you stand still, up to x30%
MightDefensiveBasic skills grant 25% damage reduction for [4.0-?] seconds.
NeedleflareOffensiveThorns damage dealt has a [20-40]% chance to deal damage to all enemies around you.
ProtectingDefensiveWhen struck, a magical bubble forms around you for 8 seconds, absorbing [N] damage. Can only occur once per [10-?] seconds.
PummelingOffensiveDeal x[40-50]% increased damage to Stunned, Knocked Down, and Frozen enemies.
RapidOffensiveBasic Skills gain [23-?]% Attack Speed.
Shared MiseryUtilityLucky Strike: When you hit a Crowd Controlled enemy, there's up to [30-?]% chance for that Crowd Control effect to spread to another unaffected nearby enemy.
The Deflecting BarrierDefensiveWhile you have a Barrier active, there is a [20-30]% chance to ignore incoming direct damage from Distant enemies.
The ExpectantOffensiveEnemies hit with Basic Skills increases the damage of your next Core Skill by x[5.0-?]% up to x50%.
The ProtectorDefensiveEvery [10-?] seconds, gain a Barrier absorbing up to [N] damage.
The UmbralResourceRestore [1-?] resource when you Crowd Control an enemy.
Wind StrikerMobilityCritical Strikes grant [8.0-?]% Movement Speed for 1 second. The duration can be extended.

Barbarian - Codex of Power Aspects

Ancestral EchoesOffensiveLucky Hit: Damaging enemies with Leap, Upheaval, or Whirlwind has up to a [40-?]% chance to summon an Ancient to perform the same Skill. Can only happen once every 5 seconds.
Ancestral ForceOffensiveHammer of the Ancients quakes outwards, dealing [32-?]% of its damage to enemies.
AnemiaUtilityLucky Hit: Direct damage against Bleeding enemies has up to a [31-?]% chance to Stun them for 2 seconds.
Berserk RippingOffensiveWhenever you deal direct damage while Berserking, inflict [22-?]% if the base damage dealt as additional Bleeding damage over 5 seconds.
Brawler'sOffensiveEnemies damaged by Kick or Charge will explode if they are killed within the next 2 seconds, dealing [N] damage to nearby enemies.
Bul-KathosDefensiveLeap creates an Earthquake that deals [N] Physical damage over 4 seconds. While standing in Earthquakes, you gain [5-?]% increased Damage Reduction.
Death WishOffensiveGain [N] Thorns while Berserking.
Echoing FuryResourceYour Shout skills generate [2.0-?] Fury per seconds while active.
Numbing WrathDefensiveEach point of Fury generated while at maximum Fury grant [9.0-?] Fortify.
Perpetual StompingMobilityDamaging an enemy with Kick or Ground Stomp resets Leap's Cooldown.
Quickening PulseOffensiveLucky Strike: Up to a [40-?]% chance to reduce the Cooldowns of your non-Ultimate Skills by 1.5 seconds when you inflict Bleeding on Elites.
Relentless Berserker'sUtilityLucky Hit: Damaging an enemy with a Core Skill has up to a [22-?]% chance to extend the duration of Berserking by 1 second. Double this duration if it was a Critical Strike.
SlakingResourceLucky Hit: You have up to a [30-?]% chance to gain 20 Fury when Rend deals direct damage to at least one Bleeding enemy.
Tempering BlowsDefensiveAfter Swapping weapons 6 times, gain [N] Fortify.
The Dire WhirlwindOffensiveWhirlwind's Critical Strike Chance is increased by [5-?]% for each second it is channeled, up to [20-?]%.
The Iron WarriorDefensiveIron Skin also makes you Unstoppable.
The PricklingOffensiveDamaging an enemy with a Core Skill has up to a [10-?]% chance to grant [N] Thorns for 5 seconds.
The Relentless ArmsmasterResourceGain x[20-?]% increased Fury Generation while all damage bonuses from Walking Arsenal are active.
Unrelenting FuryResourceKilling an enemy with a Core Skills refunds [10.0-?]% of its base Fury cost. Can only happen once per Skill cast.
Veteran BrawlerOffensiveEach time a Core Skill deals direct damage to an enemy, your next Charge or Leap deals [15-?]% increased damage, up to [225-?]%.
WindstrikerOffensiveAfter swapping weapons 6 times, gain +[20-?]% increased Attack Speed for 4 seconds.

Druid - Codex of Power Aspects

BallisticUtilityWhen you have Fortified Life your Earth Skills gain +3.
CrashstoneOffensiveEarth Skills deal x[40-?]% more Critical Strike damage to Crowd Controlled enemies.
Cyclonic ForceDefensiveCyclone Armor also provides Physical Damage Reduction. In addition, Cyclone Armor will also be applied to all nearby Allies.
MangledResourceGain 1 Spirit when you are stuck as a Werebear.
Mending StoneDefensiveThe duration of Earthern Bulwark is increased by 6 seconds. In addition, killing an enemy with Earth skills replenishes [N] of your active Earthen Bulwark's barrier.
Nighthowler'sOffensiveBlood Howl increases Critical Strike Chance by [5.0-?]%. In addition, Blood Howl also affects nearby Companions and Players for 3 seconds.
OverchargedOffensiveLucky Hit: Up to a [10-?]% chance when dealing Lightning damage to overload the target for 3 seconds, causing any direct damage you deal to them to pulse [N] additional damage to nearby enemies.
QuicksandUtilityDamage from Earth skills Slow enemies hit by [25-?]% for 5 seconds.
RetaliationOffensiveYour Core skills deal up to x[20-?]% increased damage based on your percent Fortified Health.
Shepherd'sOffensiveCore Skills deal an additional [6.0-?]% damage for each active Companion.
Skinwalker'sDefensiveWhen you use a Shapeshifting Skill that changes your form, gain [N] Life. If you are at full Life, gain the same amount as Fortify.
Stalking BeastDefensiveGain Stealth for 2 seconds when killing enemies with Shred. Breaking Stealth with an attack grants Ambush which guarantees Critical Strikes for [1.0-?] seconds.
Storm Beast'sResourceLucky Hit: Storm skills have up to a [15-?]% chance to grant 10 Spirit.
Your base Storm Skills are now also Werewolf Skills.
Stormshifter'sUtilityWhile Hurricane is active, gain +3 to your Shapeshifting Skills.
The Changeling's DebtResourceWerebear Skills restore [1.0-?] Spirit when you hit enemies afflicted by your Poisons. When Spirit is restored, your Poison effects are removed from the enemy.
The Rampaging WerebeastOffensiveThe duration of Grizzly Rage is increased by [1-?] seconds. In addition, Critical Strikes while Grizzly Rage is active increase your Critical Strike Damage by 10% for the duration.
The TempestOffensiveHurricane damage is increased by x[7.0-?]% each second while active.
The UnsatiatedResourceAfter killing an enemy with Shred, your next Werewolf Skill generates x[20-?]% more Spirit and deals x[20-?]% increased damage.
The Ursine HorrorOffensivePulverize is now also an Earth skill. After casting Pulverize, tectonic spikes continue to deal [N] damage over 2 seconds.
VigorousDefensiveGain [10.0-?]% Damage Reduction while Shapeshifted into a Werewolf.

Necromancer - Codex of Power Aspects

BlightedOffensiveThe Shadowblight Passive deals x[15-?]% increased damage against Slowed or Chilled enemies, and x[30-?]% increased damage against Stunned enemies instead.
Blood Seeker'sOffensiveBlood Lance deals [15-?]% increased damage to its primary target per lanced target.
Blood-bathedOffensiveBlood Surge's nova echoes again after a short delay, dealing x[60-?]% less damage.
Bursting BonesOffensiveWhen a segment of Bone Prison is destroyed or expired, is deals [48-?] damage in an area around itself.
Empowering ReaperOffensiveEach target hit along Sever's path increases the scythe's damage by x[6-?]% up to x[30-?]%.
FastbloodUtilityBlood Orbs reduce your Ultimate Cooldown by [0.5-?] seconds.
Flesh-RendingUtilityAfter Decompose spawns a Corpse, gain [10-?] Essence.
Grasping VeinsUtilityEnemies who are Stunned by Corpse Tendrils are also made Vulnerable for its duration. If they die while Stunned, they have a [15-?]% chance to spawn a Blood Orb.
HulkingUtilityEach time your Golem damages an enemy, its active Cooldown is reduced by [1-?] seconds.
Possessed BloodOffensiveWhen you pick up [5-?] Blood Orbs, a free Bone Spirit is spawned, dealing bonus damage based on your current Life percent.
Potent BloodResourceWhile at full Life, Blood Orbs grant [10-?] Essence.
ReanimationOffensiveYour Skeletons gain increased damage while alive, up to x[20-?]% after 10 seconds.
RequiemUtilityYou gain [3.0-?] maximum Essence per active Minion.
SacrificialUtilityYour Sacrifice bonuses are increased by [15-?]%.
Swelling CurseOffensiveBone Spirit deals increased damage based on distance traveled, up to [15-?]%.
The DamnedOffensiveYou deal x[30-?]% increased Shadow Damage to enemies afflicted by both Decrepify and Iron Maiden.
The VoidUtilityBlight's defiled area, when spawned, Pulls in enemies around the affected area.
TormentUtilityCritical Strikes with Bone Skills increase your Essence Regeneration by x[30-?]% for 4 seconds.
TorturousUtilityEnemies afflicted by your Iron Maiden have a [15-?]% chance to be Stunned for 1 Second when they deal direct damage.
Unyielding Commander'sOffensiveWhile Army of the Dead is active, your Minions gain [70-?]% Attack Speed and take 90% reduced damage.

Rogue - Codex of Power Aspects

Arrow StormsOffensiveLucky Hit: Your Ranged Skills have up to a 10% chance to create an arrow storm at the target's present location, dealing [N] Physical damage over 3 seconds. You can have up to 5 active arrow storms.
Blast-Trapper'sOffensiveLucky Hit: Dealing direct damage to enemies affected by your Trap Skills has up to a 30% chance to make them Vulnerable for 3 seconds.
Branching VolleysOffensiveBarrage's arrows have [15-?]% chance to split into 2 arrows whenever they ricochet.
Cheat'sDefensiveYou take [15.0-?]% less damage from Crowd Controlled enemies. Whenever a Crowd Controlled enemy deals direct damage to you, gain +15% Movement Speed for 2 seconds.
CorruptionOffensiveYour Imbuements have x[20-?]% increased potency against Vulnerable enemies.
Encircling BladesOffensiveFlurry Damages enemies in a circle around you and deals x[8-?]% increased damage.
EnergizingResourceDamaging an Injured enemy with a Basic Skill generates 5 Energy.
EnshroudingDefensiveGain a Dark Shroud shadow every 3 seconds when standing still. Each Dark Shadow grants [2.0-?]% increased Damage Reduction.
Explosive VerveUtilityYour Grenades count as Trap Skills. Whenever you arm a Trap or drop Grenades, you gain +[10-?]% increased Movement Speed for 3 seconds.
Opportunist'sOffensiveWhen you break Concealment, you drop a cluster of Stun Grenades around your location that explode, dealing [N] total Physical damage and Stunning enemies for 0.25 seconds.
RavenousResourceKilling a Vulnerable enemy grants you x[50- ?]% increased Energy Regeneration for 4 seconds.
ShadowslicerOffensiveWhen you cast Dash, a Shadow Clone is spawned at your location that also casts Dash, dealing [25-?]% of the base damage.
Siphoned ProtectionDefensiveLucky Hit: Damaging a Vulnerable enemy with a Core Skill has up to a [20-?]% chance to grant a Barrier for 5 seconds that absorbs [N] damage, up to a maximum of [O].
Sleeting ImbuementsOffensiveYour Rain of Arrows is always affected by all Imbuement Skills at once.
Trickster'sOffensiveCaltrops also throw a cluster of Stun Grenades that explode and deal [52-?] total Physical damage and Stunning enemies for 0.25 seconds.
Uncanny ResilienceDefensiveWhenever you trigger a Lucky Hit, gain x[5-?]% increased Damage Reduction for 5 seconds, up to a maximum of x[15-?]%.
Unstable ImbuementsOffensiveCasting a Skill that is Imbued creates an explosion around you, dealing [N] damage of the same type.
VengefulOffensiveLucky Hit: Making an enemy Vulnerable has up to a [30-?]% chance to grant +3% increased Critical Strike Chance for 3 seconds, up to +9%.
Volatile BladesOffensiveTwisting Blades cause an explosion when they return to you, dealing [N] damage and [O] additional damage based on the distance the blades travel, up to 5 meters and [P] total damage.
Volatile ShadowsOffensiveWhen a Dark Shroud shadow would be removed it explodes, dealing [N] Shadow damage around you.

Sorcerer - Codex of Power Aspects

Biting ColdOffensiveWhen you Freeze an enemy there is a [25-?]% chance they become Vulnerable for 3 seconds.
ChargedMobilityCollecting Crackling Energy increases your Movement Speed by [10-?]% for 4 seconds.
ConflagrationOffensiveWhile Channeling Incinerate, your Burning damage is increased by x[20-?]%.
ControlOffensiveYou deal [30-?]% more damage to Immobilized, Stunned, or Frozen enemies.
EfficiencyOffensiveCasting a Basic skill reduces the Mana cost of your next Core skill by [10-?]%.
Elementalist'sOffensiveCore or Mastery Skills cast at or above 100 Mana gain a [20.0-?]% increased Critical Strike Chance.
Flamewalker'sMobilityComing in contact with your Firewall grants you +[15-?]% Movement Speed for 4 seconds.
IncendiaryResourceKilling a Burning enemy grants [5-?]% Mana Cost reduction for 4 seconds, up to x[15-?]%.
Piercing ColdOffensiveIce Shards pierce 4 times, dealing [20-?]% less damage per subsequent enemy hit.
Prodigy'sResourceCasting an Ultimate Skills restores [80-?] Mana.
RechargingResourceEach time Chain Lightning bounces off you, gain [4-?] Mana.
Rolling ThunderOffensiveCharged Bolts pierce, but deal x[30-?]% less damage.
Seared FleshUtilityEvery 5 times you deal Direct Fire Damage to an enemy, they are Immobilized for [2-?] seconds.
Snowguard'sDefensiveWhile within your own Blizzard, you take [10-?]% less damage.
SnowveiledDefensiveCasting Ice Armor makes you Unstoppable for [2.0-?] seconds.
Splintering EnergyOffensiveLightning Spear has a [11-?]% chance to spawn an additional Lightning Spear when you cast it.
Storm SwellOffensiveYou deal x[11-?]% increased damage to Vulnerable enemies while you have a Barrier.
The Bounding ConduitMobilityGain [20-?]% Movement Speed for 3 seconds after Teleporting.
The UnwaveringDefensiveTaking direct damage has a [5-?]% chance to reset the Cooldown of one of your Defensive Skills.
Three CursesOffensiveMeteor deals x[35-?]% increased Critical Strike Damage against Healthy targets.



Written by Echohack
Reviewed by wudijo


Dec 5th 2022
Article created from the Press Preview Access of Diablo 4.