Ethereal Knives

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 or animated with . 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 , , , , and .

• 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. 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 will function with Ethereal Knives.

• Can be used in left mouse button slot to cast and move.

Gem level progression

Level				Mana Cost	Physical Damage	increased Projectile Speed	Exp.	Total Exp.
1	1	0	0	5	7 to 10	N/A	0	0
2	2	0	0	5	9 to 12	1%	70	70
3	4	0	0	5	10 to 15	2%	308	378
4	7	14	0	6	13 to 20	3%	1554	1932
5	11	19	0	7	19 to 28	4%	6667	8599
6	16	26	18	8	28 to 42	5%	26047	34646
7	20	31	22	9	38 to 57	6%	49725	84371
8	24	37	25	10	49 to 74	7%	95714	180085
9	28	42	29	11	64 to 96	8%	169595	349680
10	32	47	33	11	82 to 123	9%	283759	633439
11	36	52	36	12	104 to 156	10%	453996	1087435
12	40	58	40	13	131 to 197	11%	703128	1790563
13	44	63	44	14	164 to 246	12%	1061223	2851786
14	48	68	48	15	204 to 307	13%	2065870	4917656
15	52	74	51	16	253 to 380	14%	2507110	7424766
16	56	79	55	17	312 to 468	15%	5798936	13223702
17	60	84	59	18	383 to 575	16%	15083919	28307621
18	64	90	62	18	470 to 704	17%	27792735	56100356
19	67	94	65	19	546 to 818	18%	43869739	99970095
20	70	98	68	20	633 to 949	19%	242081556	342051651
21	72	100	70	20	698 to 1047	20%	N/A	N/A
22	74	N/A	N/A	21	770 to 1155	21%	N/A	N/A
23	76	N/A	N/A	21	848 to 1272	22%	N/A	N/A
24	78	N/A	N/A	21	934 to 1401	23%	N/A	N/A
25	80	N/A	N/A	22	1028 to 1542	24%	N/A	N/A
26	82	N/A	N/A	22	1131 to 1697	25%	N/A	N/A
27	84	N/A	N/A	23	1244 to 1866	26%	N/A	N/A
28	86	N/A	N/A	23	1367 to 2051	27%	N/A	N/A
29	88	N/A	N/A	24	1502 to 2253	28%	N/A	N/A
30	90	N/A	N/A	24	1650 to 2474	29%	N/A	N/A
31	91	N/A	N/A	24	1728 to 2593	29%	N/A	N/A
32	92	N/A	N/A	25	1811 to 2716	30%	N/A	N/A
33	93	N/A	N/A	25	1897 to 2845	30%	N/A	N/A
34	94	N/A	N/A	25	1987 to 2981	31%	N/A	N/A
35	95	N/A	N/A	25	2081 to 3122	31%	N/A	N/A
36	96	N/A	N/A	25	2180 to 3270	32%	N/A	N/A
37	97	N/A	N/A	26	2283 to 3424	32%	N/A	N/A
38	98	N/A	N/A	26	2390 to 3585	33%	N/A	N/A
39	99	N/A	N/A	26	2503 to 3754	33%	N/A	N/A
40	100	N/A	N/A	26	2620 to 3930	34%	N/A	N/A

Threshold jewels

The following threshold jewels augment Ethereal Knives:

Related helmet enchantments

The following helmet enchantments affect Ethereal Knives.

Alternate skill effects

Ethereal Knives has the following alternate skill effects:

Version history

Version	Changes
3.10.0	Can now create Lingering Blades. These can be animated with or destroyed with . 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.