PoE Momentum Support

Momentum Support

Momentum Support is a new Dexterity/Strength Support Gem in Path of Exile: Crucible. Supports attack skills that aren't triggered. Tag: Attack, Support, Duration. Cost & Reservation Multiplier: 110%. Requires Level 1. Gain 1 Momentum when you Use a Supported Skill Gain 1 Momentum every (0.51–0.7) seconds while Channelling a Supported Skill Lose all Momentum if you Move Supported Skills have (15–20)% increased Attack Speed per Momentum When you reach (3–5) Momentum, lose all Momentum and gain Swiftness for 1.5 seconds Swiftness grants 15% increased Movement Speed per Momentum lost Additional Effects From Quality: Swiftness lasts +(0–0.5) seconds. This 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 Active Skill Gem you wish to augment. Right click to remove from a socket.

Momentum: Supports attack skills that aren’t triggered. Using those skills will grant Momentum, which is lost when you move (including teleporting).

Unusual Gems

Name	Additional Effects From Quality	Weight
Momentum Support	Swiftness lasts +(0–0.5) seconds	100
Anomalous Momentum Support	Swiftness grants (0–2)% increased Movement Speed per Momentum lost	50
Divergent Momentum Support	(-0.1–0) seconds to time between gaining Momentum while Channelling a Supported Skill	50

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How to get it?

The Large Chest on Twilight Strand now contains Momentum Support for Ranger (previously Pierce Support).
Momentum Support is now purchasable from Nessa by the Ranger and Scion for completing Enemy at the Gate.
Momentum Support is now offered to the Marauder, Templar, Duelist and Shadow for completing Mercy Mission, and can be purchased from Nessa.

GGG has added three new Support Gems in patch 3.21. These Support Gems are all given out in Act One, and supplement the early game of some archetypes as well as introducing players to interesting Path of Exile mechanics early on, such as gems triggering other gems, in a relatively simple manner.

When exactly does attack speed change for attack skills using Momentum Support?

For most non-channelling attacks, attack speed is calculated only once when you start the attack. Since using the attack always grants 1 Momentum, the attack accounts for the momentum it's generating, and will benefit from that Momentum, so the first attack will have the attack speed for 1 Momentum (the one it generates), rather than 0. The attack which brings you to maximum Momentum will benefit from that maximum amount of Momentum, despite it being lost immediately to grant Swiftness. Because it's accounting for the momentum it's going to generate, you'll see this reflected in the attack time of the skill when the gem is socketed, before using it.

Channelling attacks do dynamically update attack speed during their use, so initially work out to basically the same result in that when you use them you'll immediately gain 1 Momentum and the attack will update it's speed to account for that Momentum, so you'll start out with attack speed equivalent to 1 Momentum rather than 0, just like the non-channelling case. But the attack speed will continue to update while you channel as Momentum is gained and lost, so as you gain additional Momentum based on how long you channel for the skill will speed up, but when you reach maximum and lose it all, the skill will slow down, so you don't get to benefit from the maximum amount for any length of time, since you never get to keep maximum Momentum.

Momentum Support Preview

The Momentum Support Gem replaces the Onslaught Support Gem and gives you a momentary speed boost that's great for going fast in the early acts.

Level Effect

Level	Requires Level	Strength	Dexterity	Supported Skills have 15% increased Attack Speed per Momentum	When you reach 3 Momentum, lose all Momentum and gain Swiftness for 1.5 seconds	Gain 1 Momentum when you Use a Supported Skill Gain 1 Momentum every 0.7 seconds while Channelling a Supported Skill Lose all Momentum if you Move	Experience
1	1	3	5	15	1.5, 3	0.7	841
2	2	4	5	15	1.5, 3	0.69	3,099
3	4	5	7	15	1.5, 3	0.68	7,433
4	7	7	10	15	1.5, 3	0.67	22,895
5	11	10	14	16	1.5, 3	0.66	49,725
6	16	13	19	16	1.5, 3	0.65	95,714
7	20	16	23	16	1.5, 3	0.64	169,595
8	24	18	26	16	1.5, 3	0.63	283,759
9	28	21	30	17	1.5, 3	0.62	453,996
10	32	23	34	17	1.5, 4	0.61	12,186,050
11	36	26	38	17	1.5, 4	0.6	3,017,327
12	40	29	41	18	1.5, 4	0.59	3,576,232
13	44	31	45	18	1.5, 4	0.58	4,231,667
14	48	34	49	18	1.5, 4	0.57	2,395,078
15	52	37	53	18	1.5, 4	0.56	8,421,063
16	56	39	57	19	1.5, 4	0.55	16,159,983
17	60	42	60	19	1.5, 4	0.54	41,170,367
18	64	44	64	19	1.5, 4	0.53	86,794,448
19	67	46	67	19	1.5, 4	0.52	157,405,063
20	70	48	70	20	1.5, 5	0.51
21	72			20	1.5, 5	0.5
22	74			20	1.5, 5	0.5
23	76			21	1.5, 5	0.49
24	78			21	1.5, 5	0.49
25	80			21	1.5, 5	0.48
26	82			21	1.5, 5	0.48
27	84			22	1.5, 5	0.47
28	86			22	1.5, 5	0.47
29	88			22	1.5, 5	0.46
30	90			22	1.5, 6	0.46
31	91			23	1.5, 6	0.45
32	92			23	1.5, 6	0.45
33	93			23	1.5, 6	0.44
34	94			23	1.5, 6	0.44
35	95			23	1.5, 6	0.43
36	96			23	1.5, 6	0.43
37	97			23	1.5, 6	0.42
38	98			24	1.5, 6	0.42
39	99			24	1.5, 6	0.41
40	100			24	1.5, 7	0.41

Onslaught Support has been removed

Onslaught Support has been removed. A new Momentum Support gem has been added in its place.
Items that previously granted Onslaught Support, such as the Forbidden Shako and Hungry Loop Unique Items, now instead grant Momentum Support.