Viper Strike

Viper Strike is a claw / dagger / sword melee strike attack skill. It hits the enemy, converting physical damage to chaos damage, and applies poison, dealing chaos damage over time based on the combined physical and chaos damage dealt. It uses both weapons to deal damage if you are dual wielding.

Skill functions and interactions

Viper Strike applies poison with a 4-second duration on hit. Viper Strike specifically overrides the base poison duration with its own base skill duration. , , and all affect the duration of that poison.

Some beneficial curses and auras for Viper Strike include , and .

Viper Strike is a Strike attack, thus:

• allows to automatically target nearby enemies for two additional strikes. Note that even though this support gem lessens attack damage, poison does not scale from attack damage modifiers.
• causes Viper Strike to hit enemies around the initial target, poisoning each.
• , Strike Skills target an additional nearby Enemy prefix modifier on hunter-influenced gloves, and annointable passive Tribal Fury all work with Viper Strike.

Gem level progression

Level			Damage Effectiveness	Attack Damage	Melee range	Added Chaos Damage	Exp.	Total Exp.
1	1	0	90%	90%	N/A	5 to 7	0	0
2	2	0	92%	92.4%	N/A	5 to 8	70	70
3	4	16	95%	94.7%	N/A	6 to 10	308	378
4	7	22	97%	97.1%	N/A	8 to 12	1554	1932
5	11	31	99%	99.5%	N/A	11 to 17	6667	8599
6	16	41	102%	101.9%	N/A	16 to 24	26047	34646
7	20	50	104%	104.2%	1	20 to 30	49725	84371
8	24	58	107%	106.6%	1	25 to 37	95714	180085
9	28	67	109%	109%	1	30 to 46	169595	349680
10	32	75	111%	111.3%	1	37 to 55	283759	633439
11	36	83	114%	113.7%	1	44 to 66	453996	1087435
12	40	92	116%	116.1%	1	53 to 79	703128	1790563
13	44	100	118%	118.4%	1	63 to 94	1061223	2851786
14	48	109	121%	120.8%	2	74 to 111	2065870	4917656
15	52	117	123%	123.2%	2	86 to 130	2507110	7424766
16	56	125	126%	125.6%	2	101 to 151	5798936	13223702
17	60	134	128%	127.9%	2	117 to 176	15083919	28307621
18	64	142	130%	130.3%	2	136 to 204	27792735	56100356
19	67	148	133%	132.7%	2	152 to 228	43869739	99970095
20	70	155	135%	135%	2	169 to 254	242081556	342051651
21	72	159	137%	137.4%	3	181 to 272	N/A	N/A
22	74	N/A	140%	139.8%	3	195 to 292	N/A	N/A
23	76	N/A	142%	142.2%	3	209 to 313	N/A	N/A
24	78	N/A	145%	144.5%	3	224 to 335	N/A	N/A
25	80	N/A	147%	146.9%	3	239 to 359	N/A	N/A
26	82	N/A	149%	149.3%	3	256 to 384	N/A	N/A
27	84	N/A	152%	151.6%	3	274 to 411	N/A	N/A
28	86	N/A	154%	154%	4	293 to 440	N/A	N/A
29	88	N/A	156%	156.4%	4	314 to 470	N/A	N/A
30	90	N/A	159%	158.7%	4	335 to 503	N/A	N/A
31	91	N/A	159%	158.7%	4	346 to 519	N/A	N/A
32	92	N/A	161%	161.1%	4	358 to 537	N/A	N/A
33	93	N/A	164%	163.5%	4	370 to 555	N/A	N/A
34	94	N/A	166%	165.9%	4	382 to 573	N/A	N/A
35	95	N/A	168%	168.2%	5	395 to 592	N/A	N/A
36	96	N/A	171%	170.6%	5	408 to 612	N/A	N/A
37	97	N/A	173%	173%	5	421 to 632	N/A	N/A
38	98	N/A	175%	175.3%	5	435 to 653	N/A	N/A
39	99	N/A	178%	177.7%	5	449 to 674	N/A	N/A
40	100	N/A	180%	180.1%	5	464 to 696	N/A	N/A

In addition, Viper Strike is the starting skill gem for Shadow. It drops after killing the first monster of the game, Hungry Corpse.

Threshold jewels

The following threshold jewels augment Viper Strike:

Related helmet enchantments

The following helmet enchantments affect Viper Strike.

Version history

Version	Changes
3.13.0	Now converts 60% of physical damage to chaos damage (from 50%).
3.12.0	Now has alternative gem quality.
3.8.0	Now deals 90% of base damage at gem level 1 (from 80%), up to 135% at gem level 20 (from 130%). Now uses both weapons if you attack while Dual Wielding, but has 30% less Attack Speed if Dual Wielding. Each weapon now hits separately if Dual Wielding, dealing 20% less Damage.
3.7.0	Now deals base damage equal to, and has an added damage effectiveness of, 80% at gem level 1 (from 115%), up to 130% at gem level 20 (from 142%). Now converts 50% of physical damage to chaos (from 25%). Now adds 5 to 7 chaos damage to attacks at gem level 1, up to 169 to 254 at gem level 20. Now gains 0.5% increased attack speed and 0.5% increased poison duration per 1% gem quality (previously just 0.5% increased attack speed per 1% gem quality).
3.4.0	Now gain additional melee weapon range every 7 levels, up to +2 at level 20 (and +3 at level 21)
2.4.0	11% more damage at gem level 20.
2.1.0	Attack skills that have their damage based on the wielded weapon have their mana costs fixed in place from level 1 onwards. Viper Strike now applies poison on hit and has a 100% chance to do so. Viper Strike now has 25% of its physical damage converted to chaos (instead of 10% physical added as chaos). Poisons applied by Viper Strike have a base duration of 8 seconds (up from 7 seconds). The Base Damage of Viper Strike has been increased from 100% to 130% at level 1, and from 122.8% to 160.4% at level 20.
1.2.0	This skill now adds 10% of physical damage as Chaos Damage and has a 50% chance to deal 175% of the attack's damage as chaos damage over seven seconds. The effect duration won't be refreshed by new attacks, but there is no limit to how many Viper Strike debuffs an enemy can have.
1.0.3	Damage progression has been increased. It is now around 15% better at level 15 than it was in 1.0.2.
1.0.2b	Fixed a bug where area damage bonuses would not benefit when supported by .
1.0.2	Generic modifiers to damage dealt will now apply to damage over time that your character causes. Damage over time is not spell damage, nor attack damage, so modifiers specific to those types will not apply. Non-specific "increased damage" modifiers will apply to damage over time. Type-specific modifiers will apply as well. For example, "increased fire damage" modifiers will apply to fire damage over time. Viper Strike can be supported by , now that the damage penalty also applies.
0.9.13	Viper Strike is now 38% better at level 1 and 3% better at level 15.
0.9.12qq	From 0.35% attack speed per quality point to 0.5%.
0.9.12d	Fixed a server crash that could occur with Viper Strike.
0.9.5	Fixed Viper Strike so that damage from the degeneration is scaled properly for PvP.
0.9.4	Increased the damage.
0.9.2	Viper Strike does more damage at higher levels than before. Reduced maximum number of charges to 4.
0.9.1	Reduced Viper Strike duration at lower levels.
0.8.7	Viper Strike added to the game.