Blade Vortex
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Blade Vortex (often referred to as BV) is a spell that creates an ethereal blade that spins around the caster that deals physical damage, each blade lasting for the minimum duration of 5 seconds.
Skill Functions and Interactions
Blade Vortex's base damage is boosted by Physical Damage, Spell Damage, Area Damage, and Damage.
Physical Damage: Because Blade Vortex deals physical damage, it can be boosted by supports and skills that are more commonly used to modify attacks, such as the Module Error: No skills found with q_where = skill.active_skill_name="Added Fire Damage" support gem and the Hatred aura.
Spell Damage: Despite the fact that it does physical damage, Blade Vortex is a spell and not an attack. It does not utilize weapon damage in any way. Blade Vortex is one of three skills that work in this manner, the other two being Module Error: Too many skills found with q_where = skill.active_skill_name="Ethereal Knives". Please choose only one of the following ids:
WraithEtherealKnives - Deals (192-692) to (288-1038) Physical Damage, Deals 15% less Damage, 25% reduced Cast Speed, 25% increased Projectile Speed, Fires 9 additional Projectiles (page)
MonsterEtherealKnives - Deals (24-625) to (36-937) Physical Damage, 20% less Cast Speed, (0-25)% increased Projectile Speed, Fires 9 additional Projectiles (page) and Module Error: Too many skills found with q_where = skill.active_skill_name="Bladefall". Please choose only one of the following ids:
IzaroDaemonBladefall - Deals (16-1521) to (23-2282) Physical Damage, +5 Volleys, 5% less Damage per Volley (page)
ExileWitchBladefall - Deals (16-1521) to (23-2282) Physical Damage, +5 Volleys, 5% less Damage per Volley (page).
Its damage can be amplified by Spell Damage on items and passives from the skill tree, as well as support gems that increase spell damage.
Leech: Leech effects that apply to Spell damage and to damage types dealt by Blade Vortex (Physical by default) will work as usual. Note that leech effects which apply to attacks do not apply to Blade Vortex because it is a spell, not an attack.
Area of Effect: Increases and decreases in to Area of Effect from support gems, passives, and equipment will augment the radius in which the skill deals damage (e.g. Module Error: No skills found with q_where = skill.active_skill_name="Increased Area of Effect", Module Error: No skills found with q_where = skill.active_skill_name="Concentrated Effect" and Carcass JackCarcass Jack
Varnished CoatEvasion: (851-1085)
Energy Shield: (173-222)
Movement Speed: -3%Requires Level 62, 96 Dex, 96 Int(120-150)% increased Evasion and Energy Shield
+(50-70) to maximum Life
+(9-12)% to all Elemental Resistances
(40-50)% increased Area of Effect
(40-50)% increased Area Damage
Extra gore"...The discomfort shown by the others is amusing, but none
can deny that my work has made quite the splash..."
- Maligaro's Journal).
Cast Speed: Faster Casting SupportFaster Casting SupportSupport, Spell
Icon: f
Level: (1-20)
Cost & Reservation Multiplier: 110%Requires Level 18Supports non-instant spell skills.Supported Skills have (20-39)% increased Cast Speed
Additional Effects From 1-20% Quality:
Supported Skills have (0.5-10)% increased Cast SpeedThis 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., Spell Echo SupportSpell Echo SupportSpell, Support
Icon: k
Level: (1-20)
Cost & Reservation Multiplier: 150%Requires Level 38Supports spell skills, making them repeat when cast. Cannot support Vaal skills, totem skills, channelling skills, triggered skills, instant skills, blink skills, or skills with a reservation.Supported Skills deal 10% less Damage
Supported Skills Repeat an additional time
Supported Skills have (40-54)% more Cast Speed
Additional Effects From 1-20% Quality:
Supported Skills deal (0.5-10)% increased Spell DamageThis 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., and Cast Speed from passives and gear will increase the rate at which blades are generated.
Duration: Increased Duration SupportIncreased Duration SupportSupport, Duration
Icon: D
Level: (1-20)
Cost & Reservation Multiplier: 130%Requires Level 31Supports any skill with a duration.Supported Skills have (45-64)% increased Skill Effect Duration
Additional Effects From 1-20% Quality:
Supported Skills have (0.5-10)% increased Skill Effect DurationThis 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., Less Duration SupportLess Duration SupportSupport, Duration
Icon: d
Level: (1-20)
Cost & Reservation Multiplier: 130%Requires Level 31Supports any skill that has a duration.Supported Skills deal (10-19)% more Damage
Supported Skills have (40-49)% less Skill Effect Duration
Additional Effects From 1-20% Quality:
Supported Skills have (0.5-10)% less Skill Effect DurationThis 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., and duration-modifying passives and equipment will affect the duration of the blades. It is possible to have multiple blades active at the same time, up to a maximum of 20 blades. Once the limit is reached, creating a new blade will simply remove the oldest existing active blade, similar to Module Error: Too many skills found with q_where = skill.active_skill_name="Summon Raging Spirit". Please choose only one of the following ids:
SummonRagingSpiritRoyale - Maximum 10 Summoned Raging Spirits, Base duration is 4.00 seconds, Minions deal 20% less Damage, Minions cannot Taunt Enemies (page)
AshwakerSummonRagingSpiritOnKill - Maximum 20 Summoned Raging Spirits, Base duration is 5.00 seconds, 25% chance to Trigger this Spell on Kill, Minions deal 18% more Damage, Minions cannot Taunt Enemies (page).
Poison: As Blade Vortex deals physical damage, it can easily scale poison damage.
Visual effect: Blade vortex's visual effect does not scale with Area of effect modifiers. Instead, to give a rough indication of radius, there are several versions of the knife effect, each rotating at a different radius. The skill will always try to have one knife using the largest-radius effect that's not larger than the actual radius of the skill, but that skill results in discrete visual changes where you need to reach a certain threshold before the next wider effect can be used. The full radius is always used mechanically. [1]
Gem level progression
Level | Mana Cost | Physical Damage | Exp. | Total Exp. | ||
---|---|---|---|---|---|---|
1 | 12 | 33 | 6 | 3 to 5 | 0 | 0 |
2 | 15 | 39 | 6 | 4 to 6 | 15249 | 15249 |
3 | 19 | 48 | 7 | 6 to 9 | 41517 | 56766 |
4 | 23 | 56 | 8 | 8 to 12 | 81983 | 138749 |
5 | 27 | 64 | 9 | 11 to 16 | 147968 | 286717 |
6 | 31 | 73 | 9 | 14 to 21 | 250557 | 537274 |
7 | 35 | 81 | 10 | 18 to 27 | 405086 | 942360 |
8 | 38 | 88 | 11 | 22 to 33 | 447718 | 1390078 |
9 | 41 | 94 | 11 | 26 to 40 | 615318 | 2005396 |
10 | 44 | 100 | 12 | 32 to 48 | 834639 | 2840035 |
11 | 47 | 106 | 12 | 38 to 57 | 1570760 | 4410795 |
12 | 50 | 113 | 13 | 45 to 68 | 1633987 | 6044782 |
13 | 53 | 119 | 13 | 54 to 81 | 2151030 | 8195812 |
14 | 56 | 125 | 14 | 64 to 96 | 2812189 | 11008001 |
15 | 59 | 132 | 14 | 76 to 114 | 5099360 | 16107361 |
16 | 62 | 138 | 15 | 90 to 135 | 9400731 | 25508092 |
17 | 64 | 142 | 15 | 101 to 151 | 15273366 | 40781458 |
18 | 66 | 146 | 16 | 113 to 169 | 26286582 | 67068040 |
19 | 68 | 151 | 16 | 126 to 189 | 62890590 | 129958630 |
20 | 70 | 155 | 16 | 140 to 211 | 212046017 | 342004647 |
21 | 72 | 159 | 17 | 157 to 235 | N/A | N/A |
22 | 74 | N/A | 17 | 174 to 262 | N/A | N/A |
23 | 76 | N/A | 18 | 194 to 291 | N/A | N/A |
24 | 78 | N/A | 18 | 216 to 324 | N/A | N/A |
25 | 80 | N/A | 18 | 241 to 361 | N/A | N/A |
26 | 82 | N/A | 19 | 267 to 401 | N/A | N/A |
27 | 84 | N/A | 19 | 297 to 446 | N/A | N/A |
28 | 86 | N/A | 19 | 330 to 495 | N/A | N/A |
29 | 88 | N/A | 20 | 367 to 550 | N/A | N/A |
30 | 90 | N/A | 20 | 407 to 610 | N/A | N/A |
31 | 91 | N/A | 20 | 429 to 643 | N/A | N/A |
32 | 92 | N/A | 20 | 451 to 677 | N/A | N/A |
33 | 93 | N/A | 21 | 475 to 713 | N/A | N/A |
34 | 94 | N/A | 21 | 501 to 751 | N/A | N/A |
35 | 95 | N/A | 21 | 527 to 791 | N/A | N/A |
36 | 96 | N/A | 21 | 555 to 832 | N/A | N/A |
37 | 97 | N/A | 21 | 584 to 876 | N/A | N/A |
38 | 98 | N/A | 22 | 615 to 923 | N/A | N/A |
39 | 99 | N/A | 22 | 647 to 971 | N/A | N/A |
40 | 100 | N/A | 22 | 681 to 1022 | N/A | N/A |
Calculating DPS
Blade Vortex's in-game tooltip DPS gives the average damage of one hit from one Blade Vortex instance, multiplied by casts per second. This value is misleading primarily because Blade Vortex can hit more than once over its duration, thus not cast speed must be used, but hits per second (rounds per second, spin rate), over the duration of the stacks.
Math and tables
Base spin rate of Blade Vortex is 600 ms. Blade Vortex hit more frequently with more stacks it has. As gem says: 10% increased Hit Rate for each blade. So spin time is calculated as
[Spin time] = [Base spin time] / ( 1 + [Spin time reduction] * [Stacks count] )
[Rounds per second] = 1 / [Spin time] ⇒ [Rounds per second] = ( 1 + [Spin time reduction] * [Stacks count] ) / [Base spin time]
Assuming spin rate increases for 10% for each stack, we have the following data:
Stacks | Spin time, ms | Rounds per second |
---|---|---|
0 | 600 | 1.667 |
1 | 545 | 1.833 |
2 | 500 | 2.000 |
3 | 462 | 2.167 |
4 | 429 | 2.333 |
5 | 400 | 2.500 |
6 | 375 | 2.667 |
7 | 353 | 2.833 |
8 | 333 | 3.000 |
9 | 316 | 3.167 |
10 | 300 | 3.333 |
11 | 286 | 3.500 |
12 | 273 | 3.667 |
13 | 261 | 3.833 |
14 | 250 | 4.000 |
15 | 240 | 4.167 |
16 | 231 | 4.333 |
17 | 222 | 4.500 |
18 | 214 | 4.667 |
19 | 207 | 4.833 |
20 | 200 | 5.000 |
Each stack of Blade Vortex increases hit damage with the following formula:
[Hit damage] = [Base hit damage] * ( 1 + [Per-stack damage increase factor] * [Stacks count] )
Then we need just multiply hits per second with hit damage.
[Damage per second multiplier] = [Hit damage] * [Rounds per second]
Assuming 30% damage increase per stack, then using base hit damage as 1, we would expect the following per-hit damage increases:
Stacks | Damage per hit | Damage per second multiplier |
---|---|---|
0 | 1.0 | 1.667 |
1 | 1.3 | 2.383 |
2 | 1.6 | 3.200 |
3 | 1.9 | 4.117 |
4 | 2.2 | 5.133 |
5 | 2.5 | 6.250 |
6 | 2.8 | 7.467 |
7 | 3.1 | 8.783 |
8 | 3.4 | 10.200 |
9 | 3.7 | 11.717 |
10 | 4.0 | 13.333 |
11 | 4.3 | 15.050 |
12 | 4.6 | 16.867 |
13 | 4.9 | 18.783 |
14 | 5.2 | 20.800 |
15 | 5.5 | 22.917 |
16 | 5.8 | 25.133 |
17 | 6.1 | 27.450 |
18 | 6.4 | 29.867 |
19 | 6.7 | 32.383 |
20 | 7.0 | 35.000 |
Finally, to obtain sustained DPS from tooltip use the following formula:
[Sustained DPS] = [Damage per second multiplier] * [Tooltip DPS] / [casts per second]
or in expanded form
[Sustained DPS] = ( 1 + [Per-stack damage increase factor] * [Stacks count] ) * ( 1 + [Spin time reduction] * [Stacks count] ) * [Tooltip DPS] / ( [casts per second] * [Base spin time] )
Quest reward
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Vendor reward
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Alternate skill effects
Name | Cost | Description |
---|---|---|
Demonic Blade VortexDemonic Blade VortexSkill Gem EffectYour Blade Vortex becomes a black and red demonic vortex. | 90 | Replaces the standard effect on a Module Error: Too many skills found with q_where = skill.active_skill_name="Blade Vortex". Please choose only one of the following ids: BladeVortexRoyale - Deals (1-14) to (2-21) Physical Damage, Base duration is 4.00 seconds, +(0-0.1) metres to radius, +35% increased Hit Rate for each blade, 35% more Damage for each blade, Can have up to 10 active spinning blades, 10% increased Critical Strike Chance for each blade (page) ExileDuelistBladeVortex - Deals (2-114) to (3-172) Physical Damage, Skills Repeat an additional (3-5) Times, Base duration is 5.00 seconds, (25-65)% increased Cast Speed, Can have up to 5 active spinning blades (page) skill gem with a black and red demonic vortex. Preview |
Related helmet enchantments
The following helmet enchantments affect Blade Vortex.
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 Vortex Crit Multi Per Blade 1 | 66 | Merciless Labyrinth | Blade Vortex has +2% to Critical Strike Multiplier for each blade | helmet 75 |
Enchantment Blade Vortex Crit Multi Per Blade 2 | 75 | Eternal Labyrinth | Blade Vortex has +3% to Critical Strike Multiplier for each blade | helmet 75 |
Enchantment Blade Vortex Damage 1 | 66 | Merciless Labyrinth | 25% increased Blade Vortex Spell Damage | helmet 75 |
Enchantment Blade Vortex Damage 2 | 75 | Eternal Labyrinth | 40% increased Blade Vortex Spell Damage | helmet 75 |
Enchantment Blade Vortex Duration 1 | 66 | Merciless Labyrinth | 20% increased Blade Vortex Duration | helmet 75 |
Enchantment Blade Vortex Duration 2 | 75 | Eternal Labyrinth | 30% increased Blade Vortex Duration | helmet 75 |
Enchantment Blade Vortex Area Of Effect 1 | 66 | Merciless Labyrinth | 16% increased Blade Vortex Area of Effect | helmet 75 |
Enchantment Blade Vortex Area Of Effect 2 | 75 | Eternal Labyrinth | 24% increased Blade Vortex Area of Effect | helmet 75 |
Version history
Version | Changes |
---|---|
2.5.0 |
|
2.4.0 |
|
2.2.0 |
|
2.1.1b |
|
2.1.0 |
|
References
- ↑ Mark_GGG (January 14, 2016). "Blade Vortex quality not working/applying.". Official Path of Exile Forums. Retrieved January 16, 2016.