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Diablo 4: Codex of Power

Hey, fellow gamers! Are you ready to take your character customization to a whole new level in Diablo 4? Because I sure am! In this article, we’re going to dive deep into the Codex of Power system. Trust me, you won’t want to miss out on this. So grab your favorite snacks, get comfortable, and let’s explore the world of Diablo 4 together!

What Is Codex of Power in Diablo 4?

The Codex of Power is an integral part of the crafting system in Diablo 4, an upcoming action role-playing game developed by Blizzard Entertainment. It is an account-wide feature that stores all aspects that players earn through completing dungeons with their characters.

The Codex of Power allows players to keep track of all the aspects they have earned across all their characters, making it easier for them to manage and apply these attributes to their gear. The Aspects gained through completing dungeons can be used indefinitely, and players can sort them based on class as well as the type of gear each one is for. This feature enables players to quickly find the Aspects that work best for the gear they’re looking to enhance.

It is important to note that while the Aspects gained from the Codex of Power can be very useful, they tend to default to the lowest roll possible when applied to gear. For example, if a gear item offers a certain percentage bonus for a particular attribute, imprinting the corresponding aspect from the Codex of Power on the same item will automatically default to the lowest percentage in the range. This caveat means that players must be mindful of this aspect defaulting and adjust their strategy accordingly.

What Are Aspects in Diablo 4?

Aspects are a new type of item that can be used to augment gear and enhance character abilities. Essentially, aspects are legendary-tier passives that provide various bonuses to characters. Players can obtain aspects as rewards for completing dungeons throughout the game, and they are stored in the Codex of Power.

Players can use an extraction process to imprint aspects on Rare and Legendary gear, which can upgrade them to Legendary rarity. This process allows players to better build their character by taking desired traits off gear that may not be optimal and passing them along to gear that fits better. The ability to imprint aspects on gear also provides a significant amount of customization, allowing players to tailor their gear to their individual playstyle and preferences.

Diablo 4: Aspect Types

Aspects are divided into five categories: Offensive, Defensive, Resource, Utility, and Mobility. Each category has its own slot for imprinting the Aspect onto the gear. Here’s the breakdown:

  • 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)

It’s important to note that not all Aspects can be imprinted on any Rare or Legendary item. Aspects are limited by category, so you’ll need to think carefully about your build and which slot you want to imprint the Aspect on.

Now, let’s talk about the limitations of the Codex of Power. Firstly, it doesn’t contain every Aspect of each Legendary in the game, so you’ll still need to hunt for some Legendaries the old-fashioned way. Additionally, when you imprint an Aspect from the Codex of Power onto gear, it always imprints the lowest possible value, so be aware of that before you start imitating Aspects.

How To Extract and Use Aspects

Players in Diablo 4 can use Aspects to augment their gear and improve their character’s abilities. To fully unlock the use of Aspects, players must reach level 15 and complete a specific quest. They can then visit an Occultist, who can extract Aspects from the gear they find. Once extracted, Aspects can be imprinted onto Rare and Legendary gear to upgrade them and make them more powerful. However, it is important to note that extracting an Aspect will not save it to the Codex of Power, and the legendary item it was extracted from will be destroyed. Therefore, players should ensure that this process is done on gear that is worthy. Thankfully, Diablo 4 allows players to preview the expected outcome before completing the imprint process.

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Diablo 4: Aspects List

All Classes Aspects

Each class has its own set of Class-specific Aspects, but there are also Generic Aspects that can be used by all classes.

Here are the tables of Generic Aspects for each category:

Offensive Aspects:

Aspect NameEffect
Edgemaster’sSkills deal up to x24% increased damage based on available resources when cast, receiving the full benefit while at full resource.
Inner CalmDeal 3.0-10% increased damage for each second you stand still, up to x30%
NeedleflareThorns damage dealt has a 20-40% chance to damage all enemies around you
PummelingDeal 40-50% increased damage to Stunned, Knocked Down, and Frozen enemies
RapidBasic Skills gain 25% Attack Speed
The ExpectantEnemies hit with Basic Skills increases the damage of your next Core Skill by 5% up to 50%
Diablo 4 Offensive Aspects

Defensive Aspects:

Aspect NameEffect
DisobedienceEnemies afflicted with damage over time effect deal 20-30% less damage to you
MightBasic skills grant 25% damage reduction for 4-8 seconds
ProtectingWhen struck, a magical bubble forms around you for 8 seconds, absorbing X damage
The Deflecting BarrierWhile you have a Barrier active, there is a 20-30% chance to ignore incoming direct damage from Distant enemies
The ProtectorEvery X (8+) seconds, gain a Barrier absorbing up to X damage
Diablo 4 Defensive Aspects

Utility, Mobility & Resources Aspects:

Aspect NameEffect
GhostwalkerYou may move freely through enemies while below 40% total Life
Shared MiseryLucky 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 UmbralRestore resources when you Crowd Control an enemy
Wind StrikerCritical Strikes grant 8+% Movement Speed for 1 second. The duration can be extended.
Diablo 4 Utility and Mobility Aspects

Class Specific Aspects

Barbarian Aspects

Barbarian Offensive Aspects:

Aspect NameDescription
Ancestral EchoesDamaging enemies with Leap, Upheaval, or Whirlwind has a chance to summon an Ancient to perform the same Skill.
Ancestral ForceHammer of the Ancients quakes outwards, dealing extra damage to enemies.
Berserk RippingWhenever you deal direct damage while Berserking, inflict additional Bleeding damage over 5 seconds.
Brawler’sEnemies damaged by Kick or Charge will explode if they are killed within the next 2 seconds, dealing damage to nearby enemies.
Death WishGain Thorns while Berserking.
Quickening PulseBleeding on Elites has a chance to reduce the Cooldowns of your non-Ultimate Skills.
The Dire WhirlwindWhirlwind’s Critical Strike Chance increases for each second it is channeled.
The PricklingDamaging an enemy with a Core Skill has a chance to grant Thorns.
Veteran BrawlerEach time a Core Skill deals direct damage to an enemy, your next Charge or Leap deals increased damage.
WindstrikerAfter swapping weapons 6 times, gain increased Attack Speed for a few seconds.
Diablo 4 Barbarian Offensive Aspects

Barbarian Defensive Aspects:

Aspect NameDescription
Bul-KathosLeap creates an Earthquake that deals Physical damage over 4 seconds. While standing in Earthquakes, you gain increased Damage Reduction.
Numbing WrathEach point of Fury generated while at maximum Fury grants Fortify.
Tempering BlowsAfter Swapping weapons 6 times, gain Fortify.
The Iron WarriorIron Skin also makes you Unstoppable.
Diablo 4 Barbarian Defensive Aspects

Barbarian Utility, Mobility & Resource Aspects

Aspect NameDescription
AnemiaDirect damage against Bleeding enemies has a chance to Stun them for 2 seconds.
Echoing FuryYour Shout skills generate Fury per second while active.
Perpetual StompingDamaging an enemy with Kick or Ground Stomp resets Leap’s Cooldown.
Relentless Berserker’sDamaging an enemy with a Core Skill has a chance to extend the duration of Berserking.
SlakingYou have a chance to gain Fury when Rend deals direct damage to at least one Bleeding enemy.
The Relentless ArmsmasterGain increased Fury Generation while all damage bonuses from Walking Arsenal are active.
Unrelenting FuryKilling an enemy with a Core Skill refunds Fury.
Diablo 4 Barbarian Utility, Mobility & Resource Aspects

Rogue Aspects

In Diablo 4, the Rogue class has a variety of Offensive, Defensive, and Utility, Mobility, and Resource aspects that players can use to customize their build. For Offensive aspects, players can choose from options like Arrow Storms, Blast-Trapper’s, Corruption, Encircling Blades, Shadowslicer, Trickster’s, and more. Defensive aspects for the Rogue include Cheat’s, Enshrouding, Siphoned Protection, and Uncanny Resilience. Lastly, the Rogue has several Utility, Mobility, and Resource aspects like Energizing, Explosive Verve, and Ravenous. Check out the tables below for a detailed list of Rogue’s aspects in each category.

Rogue Offensive Aspects:

Aspect NameEffect
Arrow StormsRanged Skills have up to a 10% chance to create an arrow storm at the target’s location
Blast-Trapper’sDirect damage to enemies affected by Trap Skills has up to a 30% chance to make them Vulnerable
Branching VolleysBarrage’s arrows have a chance to split into 2 arrows
CorruptionImbuements have +20% increased potency against Vulnerable enemies
Encircling BladesFlurry damages enemies in a circle around you and deals increased damage
Opportunist’sBreaking Concealment drops Stun Grenades and deals physical damage
ShadowslicerSpawn a Shadow Clone that also casts Dash and deals damage
Sleeting ImbuementsRain of Arrows is affected by all Imbuement Skills at once
Trickster’sCaltrops throw a cluster of Stun Grenades that deal physical damage
Unstable ImbuementsImbued Skill creates an explosion around you
VengefulMaking an enemy Vulnerable grants increased Critical Strike Chance
Volatile BladesTwisting Blades cause an explosion when they return to you
Volatile ShadowsDark Shroud shadow explodes, dealing Shadow damage around you
Diablo 4 Rogue Offensive Aspects

Rogue Defensive Aspects:

Aspect NameEffect
Cheat’sTake less damage from Crowd Controlled enemies and gain increased Movement Speed
EnshroudingGain a Dark Shroud shadow every 3 seconds when standing still
Siphoned ProtectionDamaging a Vulnerable enemy with a Core Skill has up to a 20% chance to grant a Barrier
Uncanny ResilienceTriggering a Lucky Hit grants increased Damage Reduction
Diablo 4 Rogue Defensive Aspects

Rogue Utility, Mobility & Resource Aspects:

Aspect NameEffect
EnergizingDamaging an Injured enemy with a Basic Skill generates Energy
Explosive VerveGrenades count as Trap Skills and grants increased Movement Speed
RavenousKilling a Vulnerable enemy grants increased Energy Regeneration
Diablo 4 Rogue Utility, Mobility & Resource Aspects

Sorcerer Aspects

Sorcerers! If you’re looking for some powerful aspects to enhance your gameplay in Diablo 4, check out these Offensive options: Biting Cold, Conflagration, Control, Efficiency, Elementalist’s, Piercing Cold, Rolling Thunder, Splintering Energy, Storm Swell, and Three Curses. For Defensive aspects, you can choose from Snowguard’s, Snowveiled, and The Unwavering. And if you need some Mobility and Resource options, consider Charged, Flamewalker’s, Incendiary, Prodigy’s, Recharging, Seared Flesh, and The Bounding Conduit. Check out the tables below for a quick reference of all the Sorcerer’s aspects.

Sorcerer Offensive Aspects:

Aspect NameEffect
Biting Cold25% chance to make frozen enemies Vulnerable for 3 seconds
Conflagration20% increased Burning damage while channeling Incinerate
Control30% more damage to Immobilized, Stunned, or Frozen enemies
EfficiencyCasting a Basic skill reduces the Mana cost of your next Core skill by 10%
Elementalist’s20% increased Critical Strike Chance for Core or Mastery Skills cast at or above 100 Mana
Piercing ColdIce Shards pierce 4 times, dealing 20% less damage per subsequent enemy hit
Rolling ThunderCharged Bolts pierce, but deal 30% less damage
Splintering Energy11% chance to spawn an additional Lightning Spear when casting Lightning Spear
Storm Swell11% increased damage to Vulnerable enemies while having a Barrier
Three CursesMeteor deals +35% increased Critical Strike Damage against Healthy targets
Diablo 4 Sorcerer Offensive Aspects

Sorcerer Defensive Aspects:

Aspect NameEffect
Snowguard’s10% less damage taken within your own Blizzard
SnowveiledCasting Ice Armor makes you Unstoppable for 2 seconds
The Unwavering5% chance to reset the Cooldown of one of your Defensive Skills when taking direct damage
Diablo 4 Sorcerer Defensive Aspects

Sorcerer Utility, Mobility & Resource Aspects:

Aspect NameEffect
ChargedCollecting Crackling Energy increases your Movement Speed by 10% for 4 seconds
Flamewalker’sContact with Firewall grants +15% Movement Speed for 4 seconds
IncendiaryKilling a Burning enemy grants 5% Mana Cost reduction for 4 seconds, up to 15%
Prodigy’sCasting an Ultimate Skills restores 80 Mana
RechargingEach time Chain Lightning bounces off you, gain 4 Mana
Seared FleshEvery 5 times you deal Direct Fire Damage to an enemy, they are Immobilized for 2 seconds
The Bounding ConduitGain 20% Movement Speed for 3 seconds after Teleporting
Diablo 4 Sorcerer Utility Mobility & Resource Aspects

Druid Aspects

Let’s talk about Druid’s Offensive, Defensive, Mobility and Utility aspects. The Druid has some cool Offensive aspects like Crashstone, which deals more critical strike damage to crowd-controlled enemies, and Nighthowler’s, which increases critical strike chance for Blood Howl and nearby companions and players. For Defensive aspects, the Druid has Cyclonic Force, which provides physical damage reduction and applies to nearby allies, and Skinwalker’s, which gives you life when you use a shapeshifting skill. And for Utility and Mobility, the Druid has Quicksand, which slows enemies hit by Earth skills, and Stormshifter’s, which increases your Shapeshifting skills while Hurricane is active. Check out the tables below for a breakdown of all the Druid’s aspects.

Druid Offensive Aspects:

Aspect NameDescription
CrashstoneEarth Skills deal 40% more Critical Strike damage to Crowd Controlled enemies.
Nighthowler’sBlood Howl increases Critical Strike Chance by 5.0%. In addition, Blood Howl also affects nearby Companions and Players for 3 seconds.
OverchargedLucky 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 X additional damage to nearby enemies.
RetaliationYour Core skills deal up to 20% increased damage based on your percent Fortified Health.
Shepherd’sCore Skills deal an additional 6.0% damage for each active Companion.
The Rampaging WerebeastThe duration of Grizzly Rage is increased by 1+ second. In addition, Critical Strikes while Grizzly Rage is active increase your Critical Strike Damage by 10% for the duration.
The TempestHurricane damage is increased by 7% each second while active.
The Ursine HorrorPulverize is now also an Earth skill. After casting Pulverize, tectonic spikes continue to deal X damage over 2 seconds.
Diablo 4 Druid Offensive Aspects

Druid Defensive Aspects:

Aspect NameDescription
Cyclonic ForceCyclone Armor also provides Physical Damage Reduction. In addition, Cyclone Armor will also be applied to all nearby Allies.
Mending StoneThe duration of Earthen Bulwark is increased by 6 seconds. In addition, killing an enemy with Earth skills replenishes X of your active Earthen Bulwark’s barrier.
Skinwalker’sWhen you use a Shapeshifting Skill that changes your form, gain X Life. If you are at full Life, gain the same amount as Fortify.
Stalking BeastGain Stealth for 2 seconds when killing enemies with Shred. Breaking Stealth with an attack grants Ambush which guarantees Critical Strikes for 1+ seconds.
VigorousGain 10% Damage Reduction while Shapeshifted into a Werewolf.
Diablo 4 Druid Defensive Aspects

Druid Utility, Mobility & Resource Aspects:

Aspect NameDescription
BallisticWhen you have Fortified Life your Earth Skills gain +3.
MangledGain 1 Spirit when you are stuck as a Werebear.
QuicksandDamage from Earth skills Slow enemies hit by 25% for 5 seconds.
Storm Beast’sLucky Hit: Storm
Diablo 4 Druid Utility, Mobility & Resource Aspects

Necromancer Aspects

Hey there, fellow gamer! Let’s dive into the Necromancer’s Aspects. First up, we have some Offensive Aspects such as Blood-bathed, which activates Blood Surge’s nova twice. Bursting Bones deals damage when a segment of Bone Prison is destroyed or expired. Possessed Blood spawns a Bone Spirit when you pick up 5 Blood Orbs. Moving on to Defensive Aspects, the Necromancer doesn’t have any class-specific defensive Codex of Power aspect. Lastly, we have Utility, Mobility & Resource Aspects such as Hulking, which reduces the Golem’s active cooldown each time it damages an enemy. Requiem grants you 3 maximum Essence per active Minion. The Void pulls in enemies around the defiled area, and Torment gives you a chance to Stun enemies when they deal direct damage. Check out the tables below for more details.

Necromancer Offensive Aspects:

Aspect NameDescription
BlightedShadowblight Passive deals increased damage against Slowed or Chilled enemies, and more against Stunned enemies.
Blood Seeker’sBlood Lance deals increased damage to its primary target per pierced target.
Blood-bathedBlood Surge’s nova is activated twice, but deals less damage.
Bursting BonesBone Prison segments deal damage in an area when destroyed or expired.
Empowering ReaperEach target hit along Sever’s path increases the scythe’s damage.
Possessed BloodWhen you collect 5 Blood Orbs, a free Bone Spirit spawns.
ReanimationYour Skeletons gain increased damage while alive, up to +20% after 10 seconds.
Swelling CurseBone Spirit deals increased damage based on distance traveled.
The DamnedYou deal increased Shadow Damage to enemies afflicted by both Decrepify and Iron Maiden.
Unyielding Commander’sWhile Army of the Dead is active, your Minions gain Attack Speed and damage reduction.
Diablo 4 Necromancer Offensive Aspects

Necromancer Defensive Aspects:

The Necromancer doesn’t have any Class specific Defensive Aspect.

Necromancer Utility, Mobility & Resource Aspects:

Aspect NameDescription
FastbloodBlood Orbs reduce your Ultimate Cooldown.
Flesh-RendingAfter Decompose spawns a Corpse, gain Essence.
Grasping VeinsCorpse Tendrils make enemies Vulnerable, and slain enemies have a chance to spawn a Blood Orb.
HulkingGolem’s damage reduces its cooldown.
Potent BloodBlood Orbs grant Essence while at full Life.
RequiemYou gain maximum Essence per active Minion.
SacrificialYour Sacrifice bonuses are increased.
The VoidBlight’s defiled area pulls in enemies.
TormentCritical Strikes with Bone Skills increase your Essence Regeneration.
Diablo 4 Necromancer Utility, Mobility & Resource Aspects

In conclusion, Codex of Power is a crucial element of Diablo 4 that offers players an incredible amount of customization options to tailor their playstyle. Each class has unique offensive, defensive, and utility aspects that allow players to specialize in specific roles in groups or solo play. Whether you prefer to play as a sorcerer unleashing devastating elemental attacks or a necromancer raising an army of undead, Codex of Power offers something for every player. It promises to be a significant feature that will keep players engaged and coming back for more.

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