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.Deals (11-210) to (17-315) Physical Damage
80% more Area of Effect per Blade Vortex blade detonated

Additional Effects From 1-20% Quality:
0.5% increased Area of Effect+0.5% to Chaos Damage over Time Multiplier0.5% chance to Impale on Spell Hit0.5% increased Cast SpeedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Acquisition
Drop level: 16Vendor Prices

Normal

1x Orb of Alteration

Vendor Offer
1x Scroll FragmentMetadata
Item class: Skill Gem
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: 140%
AoE Radius: 12Requires Level 28Ethereal weapons rain from the sky, dealing damage to enemies in a sequence of volleys. Enemies can be hit multiple times where these overlap.Deals (43-595) to (65-893) Physical Damage
Base duration is 6.00 seconds
Leaves a Lingering Blade in the ground for every Volley
5 Volleys
Maximum 40 Lingering Blades can be left in the ground at a time

Additional Effects From 1-20% Quality:
+(0.05-1) VolleysPlace 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
Level: (1-20)
Cost: (5-20) Mana
Cast Time: 0.60 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 220%
Projectile Speed: 1300Fires an arc of knives outwards in front of the caster which deal physical damage.Deals (7-949) to (10-1423) Physical Damage
Fires (10-13) Projectiles

Additional Effects From 1-20% Quality:
Fires +(0.1-2) ProjectilesPlace 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 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: 30%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.Deals (3-140) to (5-211) Physical Damage
Base duration is 4.00 seconds
+(0-0.2) metres to radius
35% increased Hit Rate for each blade
35% more Damage for each blade
Can have up to 10 active spinning blades

Additional Effects From 1-20% Quality:
+(0.25-5)% increased Hit Rate for each bladePlace 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.This Gem can only Support Skill Gems requiring Level (38-70) or lower
  Supported Skills deal (65-27)% less Damage
  Trigger Supported Spells when you take (528-3272) total Damage from Hits
  
  Additional Effects From 1-20% Quality:
  Supported Skills require (0.5-10)% reduced amount of Damage taken to TriggerThis 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 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
Level: (1-20)
Cost: (5-20) Mana
Cast Time: 0.60 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 220%
Projectile Speed: 1300Fires an arc of knives outwards in front of the caster which deal physical damage.Deals (7-949) to (10-1423) Physical Damage
Fires (10-13) Projectiles

Additional Effects From 1-20% Quality:
Fires +(0.1-2) ProjectilesPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket. 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: 140%
AoE Radius: 12Requires Level 28Ethereal weapons rain from the sky, dealing damage to enemies in a sequence of volleys. Enemies can be hit multiple times where these overlap.Deals (43-595) to (65-893) Physical Damage
Base duration is 6.00 seconds
Leaves a Lingering Blade in the ground for every Volley
5 Volleys
Maximum 40 Lingering Blades can be left in the ground at a time

Additional Effects From 1-20% Quality:
+(0.05-1) VolleysPlace 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	Radius	Exp.	Total Exp.
1	16	41	6	11 to 17	N/A	0	0
2	20	50	6	15 to 23	N/A	49725	49725
3	24	58	7	20 to 31	N/A	95714	145439
4	28	67	8	27 to 40	N/A	169595	315034
5	31	73	9	33 to 49	N/A	199345	514379
6	34	79	9	40 to 59	N/A	285815	800194
7	37	85	10	48 to 71	N/A	401344	1201538
8	40	92	11	57 to 86	N/A	554379	1755917
9	43	98	11	69 to 103	N/A	755049	2510966
10	46	104	12	82 to 123	N/A	1016533	3527499
11	49	111	12	97 to 146	N/A	1898602	5426101
12	52	117	13	116 to 173	N/A	1964019	7390120
13	55	123	13	137 to 205	N/A	2573731	9963851
14	58	130	14	162 to 242	N/A	4676439	14640290
15	60	134	14	180 to 271	N/A	3017327	17657617
16	62	138	15	201 to 302	N/A	7823001	25480618
17	64	142	15	224 to 336	N/A	15264208	40744826
18	66	146	16	250 to 375	N/A	26272845	67017671
19	68	151	16	278 to 417	N/A	62872274	129889945
20	70	155	16	309 to 464	N/A	212023122	341913067
21	72	159	17	343 to 515	N/A	N/A	N/A
22	74	N/A	17	382 to 572	N/A	N/A	N/A
23	76	N/A	18	424 to 635	N/A	N/A	N/A
24	78	N/A	18	470 to 705	N/A	N/A	N/A
25	80	N/A	18	521 to 782	N/A	N/A	N/A
26	82	N/A	19	578 to 867	N/A	N/A	N/A
27	84	N/A	19	640 to 960	N/A	N/A	N/A
28	86	N/A	19	709 to 1063	N/A	N/A	N/A
29	88	N/A	20	785 to 1177	N/A	N/A	N/A
30	90	N/A	20	868 to 1302	N/A	N/A	N/A
31	91	N/A	20	913 to 1370	N/A	N/A	N/A
32	92	N/A	20	960 to 1441	N/A	N/A	N/A
33	93	N/A	21	1010 to 1515	N/A	N/A	N/A
34	94	N/A	21	1062 to 1593	N/A	N/A	N/A
35	95	N/A	21	1116 to 1674	N/A	N/A	N/A
36	96	N/A	21	1174 to 1760	N/A	N/A	N/A
37	97	N/A	21	1234 to 1850	N/A	N/A	N/A
38	98	N/A	22	1296 to 1945	N/A	N/A	N/A
39	99	N/A	22	1363 to 2044	N/A	N/A	N/A
40	100	N/A	22	1432 to 2148	N/A	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
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
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
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 gem with 20% quality	A
1	Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item Item drops after killing {0} monstersRight click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.	Random gem with 1–20% 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 ↓
Intruders in Black 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:

Note that the jewels may be drop disabled and only be found in the permanent leagues as legacy items.

Item	Limit	Radius	Stats	Drop Enabled

Related helmet enchantments

The following helmet enchantments affect Blade Blast.

Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.

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

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.