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Ethereal Knives (often referred to as EK) is a spell that throws ten knives in front of the caster that deal physical damage. Multiple knives cannot hit the same target. The angle of the spell's arc is fixed and does not depend on where the cursor is, unlike other projectile skills.

Despite the fact that it does physical damage, Ethereal Knives is a spell and not an attack. It does not utilize weapon damage in any way.

Skill functions and interactions[]

  • Lingering Blades: One in three projectiles from Ethereal Knives will leave a Lingering Blade on the ground. These blades can be detonated with Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.. or animated with Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes... Lingering Blades have a duration of 6 seconds.
  • Physical spell damage: Ethereal Knives is affected by modifiers to Spell Damage, Physical Damage, and Projectile Damage. Its damage can also be improved by Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.., Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.., Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.., Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.., and Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes...
  • Projectile speed: The projectiles move at an average speed of close to 120 units/s for roughly 0.25 seconds, putting their effective range at somewhere around 30ish units. Then inherently have a variation of +/−40% base speed, but the average will be around 30.[1] Modifiers to projectile speed will increase the average distance that Ethereal Knives projectiles travel before they fade, effectively increasing the maximum range of the spell.
  • Leech: Since it is a spell, Ethereal Knives is not affected by Physical Attack Damage Leeched as Life or Physical Attack Damage Leeched as Mana. However, unspecified leech such as Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.. will function with Ethereal Knives.
  • Can be used in left mouse button slot to cast and move.

Gem level progression[]

LevelRequired LevelRequired DexterityRequired IntelligenceMana
Cost
Physical
Damage
increased
Projectile
Speed
Exp.Total Exp.
110057 to 10N/A00
220059 to 121%7070
3400510 to 152%308378
47140613 to 203%15541932
511190719 to 284%66678599
6162618828 to 425%2604734646
7203122938 to 576%4972584371
82437251049 to 747%95714180085
92842291164 to 968%169595349680
103247331182 to 1239%283759633439
1136523612104 to 15610%4539961087435
1240584013131 to 19711%7031281790563
1344634414164 to 24612%10612232851786
1448684815204 to 30713%20658704917656
1552745116253 to 38014%25071107424766
1656795517312 to 46815%579893613223702
1760845918383 to 57516%1508391928307621
1864906218470 to 70417%2779273556100356
1967946519546 to 81818%4386973999970095
2070986820633 to 94919%242081556342051651
21721007020698 to 104720%N/AN/A
2274N/AN/A21770 to 115521%N/AN/A
2376N/AN/A21848 to 127222%N/AN/A
2478N/AN/A21934 to 140123%N/AN/A
2580N/AN/A221028 to 154224%N/AN/A
2682N/AN/A221131 to 169725%N/AN/A
2784N/AN/A231244 to 186626%N/AN/A
2886N/AN/A231367 to 205127%N/AN/A
2988N/AN/A241502 to 225328%N/AN/A
3090N/AN/A241650 to 247429%N/AN/A
3191N/AN/A241728 to 259329%N/AN/A
3292N/AN/A251811 to 271630%N/AN/A
3393N/AN/A251897 to 284530%N/AN/A
3494N/AN/A251987 to 298131%N/AN/A
3595N/AN/A252081 to 312231%N/AN/A
3696N/AN/A252180 to 327032%N/AN/A
3797N/AN/A262283 to 342432%N/AN/A
3898N/AN/A262390 to 358533%N/AN/A
3999N/AN/A262503 to 375433%N/AN/A
40100N/AN/A262620 to 393034%N/AN/A

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Threshold jewels

The following threshold jewels augment Ethereal Knives: Lua error: Error: invalid field alias "items._pageID"; aliases cannot contain dots or quotes..

Related helmet enchantments

The following helmet enchantments affect Ethereal Knives. Lua error: Error: invalid field alias "mods._pageID"; aliases cannot contain dots or quotes..

Alternate skill effects

Ethereal Knives has the following alternate skill effects: Lua error: Error: invalid field alias "items._pageID"; aliases cannot contain dots or quotes..

Version history[]

Version Changes
3.10.0
  • Can now create Lingering Blades. These can be animated with Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes.. or destroyed with Lua error: Error: invalid field alias "items._pageName"; aliases cannot contain dots or quotes... These blades have a base duration of 6 seconds at all gem levels.
3.6.0
  • Mana Cost at gem level 20 is now 20 (was 23).
  • Now deals 7 to 10 Physical damage at gem level 1 (from 6 to 9) and 633 to 949 Physical damage at gem level 20 (from 457 to 685).
  • Now has an added damage effectiveness of 120% (from 100%).
3.3.0
  • Now deals 6-9 physical damage at gem level 1 (up from 4-6), up to 457-685 physical damage at gem level 20 (down from 459-688).
2.1.0
  • Damage increased by around 20% higher at level 20.
  • Now gains 1% projectile speed per gem level over 1.
2.0.0
  • Now grants 1% Increased projectile speed per 1% quality instead of increased projectile damage. Base Cast Speed has been decreased from a cast time of 800ms to 600ms, the mana costs have been reduced to compensate for the increase in cast speed. Critical Strike Chance has been increased from 5% to 6%.
1.1.5
  • Ethereal Knives casts 25% faster (from 1 to 0.8 seconds), the damage and mana cost have been reduced by 20% to compensate.
1.0.0
  • Ethereal Knives' mana cost is reduced.
0.11.4
  • Fixed a bug with Ethereal Knives that would cause you to walk closer than needed if the range was affected by projectile speed.
0.11.0
  • The damage progression of Ethereal Knives has been reduced.
0.9.12s
  • Damage increased by 10%.
0.9.12qq
  • From 1% projectile damage per quality point to 0.5%.
0.9.11i
  • Fixed the randomness of Ethereal Knives when used with traps.
0.9.9b
  • Fixed a problem where the character would not run into range of an enemy before using the skill.
0.9.9
  • Ethereal Knives has been added to the game.

References[]

  1. Mark_GGG (July 19, 2016). "Mechanical Questions Thread". Official Path of Exile Forums. Retrieved July 19, 2016.