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Blade BlastSpell, AoE, Physical
Level: (1-20)
Cost: (6-16) Mana
Cast Time: 0.50 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 50%
Requires Level 16Deals spell damage in a targeted area. When this spell deals damage, if your Lingering Blades or Blade Vortex blades are nearby, it will detonate them, dealing damage again in an area around them. Up to 50 Blades can be detonated this way.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of Effect+0.5% to Chaos Damage over Time Multiplier0.5% chance to Impale on Spell Hit0.5% increased Cast SpeedDeals (11-210) to (17-315) Physical Damage
80% more Area of Effect per Blade Vortex blade detonated
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Blade Blast skill icon.pngBlade Blast inventory icon.png
Acquisition
Area level: 16
Vendor Prices
Normal1x Orb of Alteration
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Active Skill Gems
Metadata ID: Metadata/Items/Gems/SkillGemBladeBlast

Blade Blast is a spell that creates an area of effect explosion that deals physical damage. The explosion chains to any Lingering Blades left on the ground by BladefallBladefallSpell, AoE, Physical, Duration
Level: (1-20)
Cost: (12-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 90%
Radius: 12
Requires Level 28Ethereal weapons rain from the sky, dealing damage to enemies in a sequence of volleys, each wider but less damaging than the last. Enemies can be hit multiple times where these overlap.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of Effect1% chance to Knock Enemies Back on hit2% increased distance between VolleysBase duration is 6 seconds
Deals (44-411) to (66-617) Physical Damage
6% less Damage per Volley
100% increased Critical Strike Chance
20% reduced Critical Strike Chance per Volley
5 Volleys
Leaves a Lingering Blade in the ground for every Volley
Maximum 40 Lingering Blades can be left in the ground at a time
Leaves 50% fewer Lingering Blades in the ground if you don't Cast this Spell yourself
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Bladefall skill icon.png
and Ethereal KnivesEthereal KnivesSpell, Projectile, Physical, Duration
Level: (1-20)
Cost: (5-20) Mana
Cast Time: 0.60 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%
Projectile Speed: 1300
Fires an arc of knives in front of the caster which deals physical damage.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Projectile SpeedFires 0.1 additional Projectiles0.5% chance to Impale on Spell HitBase duration is 6 seconds
Deals (7-633) to (10-949) Physical Damage
Fires 9 additional Projectiles
Maximum 40 Lingering Blades can be left in the ground at a time
Leaves a Lingering Blade in the ground for every 3 Projectiles fired
Leaves 50% fewer Lingering Blades in the ground if you don't Cast this Spell yourself
(0-19)% increased Projectile Speed
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Ethereal Knives skill icon.png
, and blades created by Blade VortexBlade VortexSpell, AoE, Duration, Physical
Level: (1-20)
Cost: (6-16) Mana
Cast Time: 0.50 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 25%
Radius: 15
Requires Level 12This spell creates ethereal blades which orbit in an area around you, dealing damage every 0.6 seconds to all enemies in their radius. As more blades are added, the damage becomes greater and more frequent.Per 1% Quality:1Superior2Anomalous3Divergent4Phantasmal0.5% increased Area of Effect0.02% of Damage Leeched as Life1% chance to create an additional Blade3% increased Damage while you have 5 or fewer BladesDeals (3-101) to (5-151) Physical Damage
Base duration is 5 seconds
Can have up to 10 active spinning blades
10% increased Critical Strike Chance for each blade
35% increased Hit Rate for each blade
35% more Damage for each blade
+(0-4) to radius
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Blade Vortex skill icon.png
. If used with Blade Vortex, all stacks of it will be consumed immediately, creating an expanding ring around the player.

Skill functions and interactions

The damage and level of the skill that leaves lingering blades on the ground is not calculated in the blade blast damage. Lower level skills can create more blades in certain situations. For example:

  • Keeping skills low enough to support a level one Cast when Damage Taken SupportCast when Damage Taken SupportSupport, Spell, Trigger
    Icon: !
    Level: (1-20)
    Cost & Reservation Multiplier: 250%
    Cooldown Time: 0.25 sec
    Can Store 1 Use(s)
    Requires Level 38Each supported spell skill will track damage you take, and be triggered when the total damage taken reaches a threshold. Cannot support skills used by totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.Per 1% Quality:1Superior2Anomalous3DivergentSupported Skills deal 0.5% increased DamageSupported Skills have 1% increased Skill Effect DurationSupported Skills require 1% reduced amount of Damage taken to TriggerTrigger Supported Spells when you take a total of (528-3272) Damage
    Supported Skills deal (-70-6)% more Damage
    This Gem can only Support Skill Gems requiring Level (38-70) or lower
    You cannot Cast Supported Triggerable Spells directly
    This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Active Skill Gem you wish to augment. Right click to remove from a socket.
    , will give the best chance to create maximum blades from damage taken.

Lingering blades from Ethereal KnivesEthereal KnivesSpell, Projectile, Physical, Duration
Level: (1-20)
Cost: (5-20) Mana
Cast Time: 0.60 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 120%
Projectile Speed: 1300
Fires an arc of knives in front of the caster which deals physical damage.Per 1% Quality:1Superior2Anomalous3Divergent1% increased Projectile SpeedFires 0.1 additional Projectiles0.5% chance to Impale on Spell HitBase duration is 6 seconds
Deals (7-633) to (10-949) Physical Damage
Fires 9 additional Projectiles
Maximum 40 Lingering Blades can be left in the ground at a time
Leaves a Lingering Blade in the ground for every 3 Projectiles fired
Leaves 50% fewer Lingering Blades in the ground if you don't Cast this Spell yourself
(0-19)% increased Projectile Speed
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Ethereal Knives skill icon.png
and BladefallBladefallSpell, AoE, Physical, Duration
Level: (1-20)
Cost: (12-23) Mana
Cast Time: 0.70 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 90%
Radius: 12
Requires Level 28Ethereal weapons rain from the sky, dealing damage to enemies in a sequence of volleys, each wider but less damaging than the last. Enemies can be hit multiple times where these overlap.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Area of Effect1% chance to Knock Enemies Back on hit2% increased distance between VolleysBase duration is 6 seconds
Deals (44-411) to (66-617) Physical Damage
6% less Damage per Volley
100% increased Critical Strike Chance
20% reduced Critical Strike Chance per Volley
5 Volleys
Leaves a Lingering Blade in the ground for every Volley
Maximum 40 Lingering Blades can be left in the ground at a time
Leaves 50% fewer Lingering Blades in the ground if you don't Cast this Spell yourself
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Bladefall skill icon.png
will persist after unequipping them. Therefore using said skills on a weapon swap and then swapping back to blade blast will save gem slots.

Gem level progression

LevelRequired LevelRequired DexterityMana
Cost
Physical
Damage
RadiusExp.Total Exp.
11641613 to 20N/A00
22050618 to 27N/A4972549725
32458723 to 35N/A95714145439
42867830 to 45N/A169595315034
53173936 to 54N/A199345514379
63479943 to 64N/A285815800194
737851051 to 76N/A4013441201538
840921160 to 90N/A5543791755917
943981171 to 106N/A7550492510966
10461041283 to 125N/A10165333527499
11491111298 to 146N/A18986025426101
125211713114 to 171N/A19640197390120
135512313133 to 200N/A25737319963851
145813014155 to 232N/A467643914640290
156013414171 to 257N/A301732717657617
166213815189 to 283N/A782300125480618
176414215209 to 313N/A1526420840744826
186614616230 to 345N/A2627284567017671
196815116253 to 380N/A62872274129889945
207015516279 to 418N/A212023122341913067
217215917307 to 460N/AN/AN/A
2274N/A17338 to 506N/AN/AN/A
2376N/A18371 to 557N/AN/AN/A
2478N/A18408 to 611N/AN/AN/A
2580N/A18448 to 671N/AN/AN/A
2682N/A19491 to 737N/AN/AN/A
2784N/A19539 to 808N/AN/AN/A
2886N/A19591 to 886N/AN/AN/A
2988N/A20647 to 971N/AN/AN/A
3090N/A20709 to 1064N/AN/AN/A
3191N/A20742 to 1113N/AN/AN/A
3292N/A20776 to 1165N/AN/AN/A
3393N/A21812 to 1219N/AN/AN/A
3494N/A21850 to 1275N/AN/AN/A
3595N/A21889 to 1334N/AN/AN/A
3696N/A21930 to 1395N/AN/AN/A
3797N/A21973 to 1459N/AN/AN/A
3898N/A221017 to 1526N/AN/AN/A
3999N/A221064 to 1596N/AN/AN/A
40100N/A221112 to 1668N/AN/AN/A

Item acquisition
Questionmark.png

Upgrade paths

This item can be acquired through the following upgrade paths or vendor recipes:

AmountIngredientGeneral
Notes
Type
8Dying AnguishDying Anguish8Level 19 Gem
Alternative Quality: +19%
Moribund, he gazed upon the journey taken as blood trickled down his chin. His eye closed on the city ahead that he would never call home.
random level 19 gem with 19% alternative qualityAutomatic
1Gemcutter's IncubatorGemcutter's IncubatorAdds an incubated Quality Gem item to an equippable item
Item drops after killing # monsters
Quality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
random superior gemAutomatic
6The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
- Ezomyte Proverb
random level 20 gemAutomatic
13The CataclysmThe Cataclysm13Level 21 Spell Gem
Corrupted
The mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
random corrupted level 21 Spell gemAutomatic
3Gemcutter's PromiseGemcutter's Promise3Superior Gem
Quality: +20%
"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
random superior gem with 20% qualityAutomatic
1The VoidThe Void1Reach into the Void and claim your prize.random divination card set exchangeAutomatic

Quest reward

This item is given as a quest reward for the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
Intruders in Black
Act 2

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Root of the Problem
Act 2
Yeena
A Fixture of Fate
Act 3
Siosa
Fallen from Grace
Act 6
Lilly Roth

Threshold jewels

The following threshold jewels augment Blade Blast:

ItemLimitRadiusStats

Related helmet enchantments

The following helmet enchantments affect Blade Blast.

NameFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.StatsSpawn Weighting
Enchantment Blade Blast Area of Effect 166Blade Blast has 16% increased Area of Effecthelmet 100
default 0
Enchantment Blade Blast Area of Effect 275Blade Blast has 24% increased Area of Effecthelmet 100
default 0
Enchantment Blade Blast Damage 166Blade Blast deals 25% increased Damagehelmet 100
default 0
Enchantment Blade Blast Damage 275Blade Blast deals 40% increased Damagehelmet 100
default 0
Enchantment Blade Blast Detonation Area 166Blade Blast detonates other Lingering Blades within an 50% increased Areahelmet 100
default 0
Enchantment Blade Blast Detonation Area 275Blade Blast detonates other Lingering Blades within an 75% increased Areahelmet 100
default 0

Alternate skill effects

Blade Blast has the following alternate skill effects:

ItemEffect(s)
Illusionist Blade Blast EffectIllusionist Blade Blast EffectSkill Gem EffectReplaces the standard effect on a Blade Blast gem with an illusionist version.Replaces the standard effect on a Blade Blast gem with an illusionist version.
Sawblade Blast EffectSawblade Blast EffectSkill Gem EffectYour Blade Blast becomes a Sawblade Effect.Your Blade Blast becomes a Sawblade Effect.

Version history

Version Changes
3.15.0
  • Now has “80% more Area of Effect per Blade Vortex blade detonated” (previously 35%).
  • No longer Unnerves Enemies for 4 seconds on Hit.
  • No longer has radius scaling with gem level.
  • Now has a base radius of 14 (previously 18).
3.14.0
  • Now deals 11-17 Physical Damage at gem level 1 (previously 13-20) and 210-315 Physical Damage (previously 279-418) at gem level 20.
  • Now has added damage effectiveness of 50% (previously 60%).
3.13.0
  • Now has 35% more area of effect per Blade Vortex blade detonated (from 20%).
3.11.0
  • Made improvements to Totem AI for skills that have some sort of prerequisite for use (such as blades for Blade Blast, or corpses for Detonate Dead).
3.10.1d
  • Fixed a bug where Shock Nova and Blade Blast’s skill effects were not the correct visual size when cast with 9 or more stacks of Intensity.
3.10.1c
  • Fixed an instance crash that could occur when using Blade Blast.
3.10.0
  • Blade Blast has been added to the game.

References