Blade Blast

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 detonatedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.Acquisition
Drop level: 16Vendor Offer
1x Scroll FragmentMetadata
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 BladefallBladefallCritical, Spell, 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: 12Requires 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 yourselfPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. 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: 1300Fires 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 SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., and blades created by Blade VortexBlade VortexCritical, Spell, AoE, Duration, Physical
Level: (1-20)
Cost: (6-16) Mana
Cast Time: 0.50 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 20%
Radius: 15Requires 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 (3-86) to (5-129) Physical Damage
Base duration is 4 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
+(0-2) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.. 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 directlyThis 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: 1300Fires 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 SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. and BladefallBladefallCritical, Spell, 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: 12Requires 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 yourselfPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. 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

Level			Mana Cost	Physical Damage	Exp.	Total Exp.
1	16	41	6	11 to 17	0	0
2	20	50	6	15 to 22	49725	49725
3	24	58	7	19 to 29	95714	145439
4	28	67	8	25 to 37	169595	315034
5	31	73	9	29 to 44	199345	514379
6	34	79	9	35 to 52	285815	800194
7	37	85	10	41 to 62	401344	1201538
8	40	92	11	48 to 73	554379	1755917
9	43	98	11	57 to 85	755049	2510966
10	46	104	12	66 to 99	1016533	3527499
11	49	111	12	77 to 116	1898602	5426101
12	52	117	13	89 to 134	1964019	7390120
13	55	123	13	104 to 155	2573731	9963851
14	58	130	14	120 to 180	4676439	14640290
15	60	134	14	132 to 197	3017327	17657617
16	62	138	15	145 to 217	7823001	25480618
17	64	142	15	159 to 238	15264208	40744826
18	66	146	16	174 to 262	26272845	67017671
19	68	151	16	191 to 287	62872274	129889945
20	70	155	16	210 to 315	212023122	341913067
21	72	159	17	230 to 344	N/A	N/A
22	74	N/A	17	251 to 377	N/A	N/A
23	76	N/A	18	275 to 413	N/A	N/A
24	78	N/A	18	301 to 451	N/A	N/A
25	80	N/A	18	329 to 493	N/A	N/A
26	82	N/A	19	359 to 539	N/A	N/A
27	84	N/A	19	392 to 588	N/A	N/A
28	86	N/A	19	428 to 642	N/A	N/A
29	88	N/A	20	467 to 700	N/A	N/A
30	90	N/A	20	509 to 763	N/A	N/A
31	91	N/A	20	531 to 797	N/A	N/A
32	92	N/A	20	555 to 832	N/A	N/A
33	93	N/A	21	579 to 868	N/A	N/A
34	94	N/A	21	604 to 906	N/A	N/A
35	95	N/A	21	631 to 946	N/A	N/A
36	96	N/A	21	658 to 987	N/A	N/A
37	97	N/A	21	687 to 1030	N/A	N/A
38	98	N/A	22	717 to 1075	N/A	N/A
39	99	N/A	22	748 to 1121	N/A	N/A
40	100	N/A	22	780 to 1170	N/A	N/A

Item acquisition

Blade Blast can drop anywhere.

Recipes

Blade Blast can be created from the following recipes:

Amount	Part	Description	Meta
8	Dying AnguishDying Anguish8Level 19 Gem Alternate 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 quality	A
1	Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersQuality GemRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters. Shift click to unstack.	Random superior gem	A
6	The 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 gem	A
13	The CataclysmThe Cataclysm13Level 21 Spell Gem CorruptedThe 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 gem	A
3	Gemcutter's PromiseGemcutter's Promise3Gem 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% quality	A
1	The VoidThe Void1Reach into the Void and claim your prize.	Random divination card set exchange	A

Quest reward

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

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
Quest ↓
Intruders in Black Act 2	✗	✓	✗	✗	✗	✗	✗

Vendor reward

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

Class →	Witch	Shadow	Ranger	Duelist	Marauder	Templar	Scion
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:

Item	Limit	Radius	Stats

Related helmet enchantments

The following helmet enchantments affect Blade Blast.

Name		Stats	Spawn Weighting
Enchantment Blade Blast Area of Effect 1	66	Blade Blast has 16% increased Area of Effect	helmet 100 default 0
Enchantment Blade Blast Area of Effect 2	75	Blade Blast has 24% increased Area of Effect	helmet 100 default 0
Enchantment Blade Blast Damage 1	66	Blade Blast deals 25% increased Damage	helmet 100 default 0
Enchantment Blade Blast Damage 2	75	Blade Blast deals 40% increased Damage	helmet 100 default 0
Enchantment Blade Blast Detonation Area 1	66	Blade Blast detonates other Lingering Blades within an 50% increased Area	helmet 100 default 0
Enchantment Blade Blast Detonation Area 2	75	Blade Blast detonates other Lingering Blades within an 75% increased Area	helmet 100 default 0

Alternate skill effects

Blade Blast has the following alternate skill effects:

Item	Effect(s)
Illusionist Blade Blast EffectIllusionist Blade Blast EffectSkill Gem EffectYour Blade Blast becomes an Illusionist Effect.	Your Blade Blast becomes an Illusionist Effect.
Sawblade Blast EffectSawblade Blast EffectSkill Gem EffectYour Blade Blast becomes a Sawblade Effect.	Your Blade Blast becomes a Sawblade Effect.
Void Emperor Blade Blast EffectVoid Emperor Blade Blast EffectSkill Gem EffectYour Blade Blast becomes a Void Emperor Effect.	Your Blade Blast becomes a Void Emperor 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.