Discharge

"Blasting enemies with waves of frost and lightning isn't just a talent reserved for pure weavers of magic. With the Discharge skill, any combatant can channel accumulated charges into a swirling tower of seething energy. The composition of the blast varies depending on the type of charges consumed, dealing cold with Frenzy, fire from Endurance, and lightning from Power Charge. Regardless of the charge type, surrounding foes are blown to bits."

— Description on the official Path of Exile website

Discharge is a spell that unleashes all of the player's charges (frenzy charges, power charges and endurance charges) and deals elemental damage in an area around him.

Skill Functions and Interactions

Area of effect: all damage from expended charges is dealt simultaneously within a radius centered around the caster. This radius can be altered with area of effect modifiers. Discharge has a target cap of 30 targets, meaning that even if Discharge's area of effect covers more than 30 monsters, only 30 of them would be hit.

Charge bonuses: any bonuses granted from the charges that are being expended will be actively applied to that cast of Discharge. For example, expending three Power Charges and three Frenzy Charges will cause that cast of Discharge to have +150% increased chance to crit, deal 12% more damage, and the cast time will be increased by 12%. Once Discharge is finished casting, charge bonuses will no longer apply.

Charge-gaining effects: this skill will apply charge-gaining effects after the loss of the charges consumed to cast it. For example, critical hits while wearing the Voll's ProtectorVoll's Protector
Holy ChainmailQuality: +20%
Armour: (426-523)
Energy Shield: (85-105)
Movement Speed: -5%Requires Level 35, 53 Str, 53 Int(100-150)% increased Armour and Energy Shield
50% reduced maximum Mana
Gain a Power Charge for each Enemy you hit with a Critical Strike
Inner ConvictionAlthough a great leader during the war,
Voll proved disastrous in times of peace. armor will cause a number of Power Charges to remain after casting equal to the number of enemies hit (up to the character's charge cap), regardless of whether the previous cast consumed any power charges. The same effect applies to Frenzy charges gained from kills under the buff or charge-gaining effects. The gem gives a chance to gain only one power charge after every cast, regardless of the number of monsters hit.

Gem level progression

Level			Mana Cost	Lightning Damage per Power Charge	Fire Damage per Endurance Charge	Cold Damage per Frenzy Charge	Exp.	Total Exp.
1	28	67	13	N/A	N/A	N/A	0	0
2	31	73	14	N/A	N/A	N/A	199345	199345
3	34	79	15	N/A	N/A	N/A	285815	485160
4	37	85	16	N/A	N/A	N/A	401344	886504
5	40	92	16	N/A	N/A	N/A	554379	1440883
6	42	96	17	N/A	N/A	N/A	477437	1918320
7	44	100	18	N/A	N/A	N/A	583786	2502106
8	46	104	18	N/A	N/A	N/A	710359	3212465
9	48	109	19	N/A	N/A	N/A	1355511	4567976
10	50	113	19	N/A	N/A	N/A	1138877	5706853
11	52	117	20	N/A	N/A	N/A	1368233	7075086
12	54	121	20	N/A	N/A	N/A	1638338	8713424
13	56	125	21	N/A	N/A	N/A	1956648	10670072
14	58	130	21	N/A	N/A	N/A	3655184	14325256
15	60	134	22	N/A	N/A	N/A	3017327	17342583
16	62	138	22	N/A	N/A	N/A	7759995	25102578
17	64	142	23	N/A	N/A	N/A	15138193	40240771
18	66	146	24	N/A	N/A	N/A	26083825	66324596
19	68	151	24	N/A	N/A	N/A	62620247	128944843
20	70	155	25	N/A	N/A	N/A	211708088	340652931
21	72	159	25	N/A	N/A	N/A	N/A	N/A
22	74	N/A	26	N/A	N/A	N/A	N/A	N/A
23	76	N/A	26	N/A	N/A	N/A	N/A	N/A
24	78	N/A	27	N/A	N/A	N/A	N/A	N/A
25	80	N/A	27	N/A	N/A	N/A	N/A	N/A
26	82	N/A	28	N/A	N/A	N/A	N/A	N/A
27	84	N/A	28	N/A	N/A	N/A	N/A	N/A
28	86	N/A	29	N/A	N/A	N/A	N/A	N/A
29	88	N/A	30	N/A	N/A	N/A	N/A	N/A
30	90	N/A	30	N/A	N/A	N/A	N/A	N/A
31	91	N/A	30	N/A	N/A	N/A	N/A	N/A
32	92	N/A	31	N/A	N/A	N/A	N/A	N/A
33	93	N/A	31	N/A	N/A	N/A	N/A	N/A
34	94	N/A	31	N/A	N/A	N/A	N/A	N/A
35	95	N/A	31	N/A	N/A	N/A	N/A	N/A
36	96	N/A	32	N/A	N/A	N/A	N/A	N/A
37	97	N/A	32	N/A	N/A	N/A	N/A	N/A
38	98	N/A	32	N/A	N/A	N/A	N/A	N/A
39	99	N/A	33	N/A	N/A	N/A	N/A	N/A
40	100	N/A	33	N/A	N/A	N/A	N/A	N/A

Version history

Version	Changes
2.3.0e	The number of targets that Discharge can hit has been increased from 20 to 30.
2.0.2	The graphical performance of Discharge has been improved - it now only plays the dominant effect if you have multiple charge types.
2.0.0	Damage increased at lower levels. It now grants 0.5% increased area of effect radius per 1% of quality (was 1% per 1% quality). Critical Strike Chance has been reduced from 8% to 7%.
1.0.0	Mana cost increased.
0.10.8	Damage increased.
0.10.0	Early levels improved by around 20%.
0.9.12s	Damage progression increased. By skill level 15, it's doing 29% more damage than before.
0.9.9	Slight buff to damage.
0.9.7	Discharge's damage has been nerfed.
0.9.5g	Reduced the Critical Strike chance.
0.9.4	Reduced the damage. Fixed Discharge not granting Charges for hitting/killing enemies.
0.9.3	Discharge has been added to the game.