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Heimerdinger Patch History

Every buff and nerf, with the numbers, 3.8 to 26.16

Heimerdinger has been touched in 29 of the 305 patches tracked here, across 128 individual values: 64 moved in their favour, 63 against. Most recent change: patch 26.3.

29Patches touched
128Values changed
64Buffed
63Nerfed
26.3Last change

The abilities Riot keeps touching

StatsBase stats

Health, attack damage, armour, magic resist, movement speed, attack range and their per-level growth.

STATS
Base stats
10 changed6▲ 4▼
PHextech Affinity

Gain Movement Speed while near allied towers and turrets deployed by Heimerdinger.

P
Hextech Affinity
0 changed0▲ 0▼
QH-28 G Evolution Turret

Heimerdinger lays down a rapid-fire cannon turret equipped with a secondary pass-through beam attack (turrets deal half damage to towers).

Q
H-28 G Evolution Turret
57 changed29▲ 28▼
WHextech Micro-Rockets

Heimerdinger fires long-range rockets that converge on his cursor.

W
Hextech Micro-Rockets
23 changed11▲ 12▼
ECH-2 Electron Storm Grenade

Heimerdinger lobs a grenade at a location, dealing damage to enemy units, as well as stunning anyone directly hit and slowing surrounding units.

E
CH-2 Electron Storm Grenade
20 changed11▲ 8▼
RUPGRADE!!!

No description in Riot’s data.

R
UPGRADE!!!
18 changed7▲ 11▼

The kit this replaced

Reworked in patch 3.13. Icons are the originals, still served by Data Dragon at version 3.7.9.

P
Techmaturgical Repair Bots
Q
H-28G Evolution Turret
W
Hextech Micro-Rockets
E
CH-1 Concussion Grenade
R
UPGRADE!!!

Every change, newest first

Patch 26.3buffFebruary 3, 2026
AbilityWhat changedBeforeAfterSince 3.13 rework
HP per level101▲ 105 4%
WBase Damage40/65/90/115/140▲ 50/75/100/125/150 11%
WTotal Base Damage80/125/170/215/260▲ 90/135/180/225/270 6%
Patch 25.19buffSeptember 23, 2025
AbilityWhat changedBeforeAfterSince 3.13 rework
WTotal Base Damage80/115/150/185/220▲ 80/125/170/215/260 13%
Patch 25.15nerfJuly 29, 2025
AbilityWhat changedBeforeAfterSince 3.13 rework
WTotal Base Damage90/135/180/225/270▼ 80/115/150/185/220 17%
Patch 14.2tweakJanuary 23, 2024
AbilityWhat changedBeforeAfterSince 3.13 rework
QEffect 16/9/12/15/18▲ 225/300/375/0/0
QEffect 1020/20/20/20/20▲ 150/200/250/0/0
QEffect 240/60/80/100/120▼ 80/80/80/0/0 40%
QEffect 33/3/3/3/3▼ 1.5/1.5/1.5/0/0 70%
QEffect 426/22/18/14/10▼ 0.12/0.12/0.12/0/0 100%
QEffect 690/90/90/90/90▼ 0.45/0.45/0.45/0/0 100%
QEffect 80.25/0.25/0.25/0.25/0.25▲ 135/180/225/0/0
Patch 13.22November 9, 2023 · Read the 13.22 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
Attack speed Class-wide0.625▲ 0.658 5%
Patch 13.4tweakFebruary 22, 2023 · Read the 13.4 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
QTurret Health End Value700▼ 640 9%
QTurret Health Start Value175▼ 130 26%
WBase Damage50/75/100/125/150▼ 40/65/90/115/140 10%
WDamage Coefficient0.45▲ 0.55 22%
WTotal Damage Coefficient0.93▲ 1.03 11%
Patch 12.12buffJune 22, 2022
AbilityWhat changedBeforeAfterSince 3.13 rework
QBase Damage6/9/12/15/18▲ 7/11/15/19/23 25%
QTurret Health End Value575▲ 700 22%
QTurret Health Start Value150▲ 175 17%
ECooldown12/12/12/12/12▲ 11/11/11/11/11 8%
Patch 12.10tweak
AbilityWhat changedBeforeAfterSince 3.13 rework
Armor per level Class-wide3▲ 4.2 40%
Base HP Class-wide488▲ 558 14%
HP per level Class-wide87▲ 101 16%
MR per level Class-wide0.5▲ 1.3 160%
ECast range280/280/280/280/280▲ 925/925/925/925/925 230%
ECooldown100/85/70/70/70▲ 12/12/12/12/12 85%
EEffect 1225/300/375/0/0▼ 80/110/140/170/200 22%
EEffect 280/80/80/0/0▼ 12/11/10/9/8 79%
EEffect 31.5/1.5/1.5/0/0▲ 25/25/25/25/25
EEffect 40.12/0.12/0.12/0/0▲ 1.25/1.25/1.25/1.25/1.25
Patch 12.6tweakApril 4, 2022 · Read the 12.6 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
ECast range925/925/925/925/925▼ 280/280/280/280/280 70%
ECooldown12/12/12/12/12▼ 100/85/70/70/70
EEffect 160/100/140/180/220▲ 225/300/375/0/0 29%
EEffect 22.5/2.5/2.5/2.5/2.5▲ 80/80/80/0/0
EEffect 325/25/25/25/25▼ 1.5/1.5/1.5/0/0 96%
EEffect 41.25/1.25/1.25/1.25/1.25▼ 0.12/0.12/0.12/0/0 94%
Patch 11.9nerfApril 27, 2021
AbilityWhat changedBeforeAfterSince 3.13 rework
WBase Damage50/80/110/140/170▼ 50/75/100/125/150 9%
WExtra Hit Base Damage10/16/22/28/34▼ 10/15/20/25/30 9%
WTotal Base Damage90/144/198/252/306▼ 90/135/180/225/270 9%
Patch 11.1January 5, 2021 · Read the 11.1 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
Base AD Class-wide55.536▲ 56 1%
Base armor Class-wide19.04▼ 19 0%
Patch 10.23tweakNovember 10, 2020
AbilityWhat changedBeforeAfterSince 3.13 rework
QCast range280/280/280/280/280▲ 350/350/350/350/350 25%
QCooldown100/85/70/70/70▲ 1/1/1/1/1 99%
QEffect 1225/300/375/0/0▼ 6/9/12/15/18 93%
QEffect 10150/200/250/0/0▼ 20/20/20/20/20 83%
QEffect 280/80/80/0/0▲ 40/60/80/100/120 67%
QEffect 31.5/1.5/1.5/0/0▲ 3/3/3/3/3 233%
QEffect 40.12/0.12/0.12/0/0▲ 26/22/18/14/10
QEffect 5500/690/865/0/0▲ 900/900/900/900/900 119%
QEffect 60.45/0.45/0.45/0/0▲ 90/90/90/90/90
QEffect 8135/180/225/0/0▼ 0.25/0.25/0.25/0.25/0.25 100%
Patch 10.1nerfJanuary 7, 2020 · Read the 10.1 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
WBase Damage60/90/120/150/180▼ 50/80/110/140/170 8%
WExtra Hit Base Damage12/18/24/30/36▼ 10/16/22/28/34 8%
WTotal Base Damage108/162/216/270/324▼ 90/144/198/252/306 8%
RE Ult Base Damage250/350/450▼ 200/300/400 14%
Patch 9.19buffSeptember 24, 2019 · Read the 9.19 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
EStun Duration1.25/1.25/1.25/1.25/1.25▲ 1.5/1.5/1.5/1.5/1.5 20%
Patch 9.7tweakApril 2, 2019 · Read the 9.7 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
QCast range350/350/350/350/350▼ 280/280/280/280/280 20%
QCooldown1/1/1/1/1▼ 100/85/70/70/70
QEffect 16/9/12/15/18▲ 225/300/375/0/0
QEffect 1020/20/20/20/20▲ 150/200/250/0/0
QEffect 240/60/80/100/120▼ 80/80/80/0/0 40%
QEffect 33/3/3/3/3▼ 1.5/1.5/1.5/0/0 70%
QEffect 426/22/18/14/10▼ 0.12/0.12/0.12/0/0 100%
QEffect 5900/900/900/900/900▼ 500/690/865/0/0 54%
QEffect 690/90/90/90/90▼ 0.45/0.45/0.45/0/0 100%
QEffect 80.25/0.25/0.25/0.25/0.25▲ 135/180/225/0/0
Show the earlier 32 patches, back to V1.0.0.94(b)
Patch 8.2January 23, 2018 · Read the 8.2 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
HP regen Class-wide7▼ 1.4 80%
Patch 8.1nerfJanuary 9, 2018 · Read the 8.1 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
REffect 1200/270/340▼ 100/140/180 48%
Patch 7.22
AbilityWhat changedBeforeAfterSince 3.13 rework
Base HP Class-wide476▲ 488 3%
HP per level Class-wide75▲ 87 16%
Patch 7.10tweakMay 16, 2017 · Read the 7.10 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
HP regen11.008▼ 7 36%
QEffect 112/18/23/29/34▼ 6/9/12/15/18 48%
QEffect 1024/23/22/21/20▼ 20/20/20/20/20 9%
QEffect 240/60/80/105/130▼ 40/60/80/100/120 4%
QEffect 31/1/2/2/3▲ 3/3/3/3/3 67%
QEffect 616/16/16/16/16▲ 90/90/90/90/90
QRatio a10.15▲ 0.3 100%
WCooldown11/11/11/11/11▲ 11/10/9/8/7 18%
WCost70/80/90/100/110▲ 50/60/70/80/90 22%
ECooldown18/16/14/12/10▲ 12/12/12/12/12 14%
REffect 10150/200/250▲ 150/250/350 25%
Patch 7.9May 2, 2017 · Read the 7.9 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
MR per level Class-wide0▲ 0.5
Patch 7.3nerfFebruary 7, 2017 · Read the 7.3 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
HP regen Class-wide11.005▲ 11.008 0%
QRatio f124/23/22/21/20▼ 0 100%
QRatio f216/16/16/16/16▼ 0 100%
RRatio f10.45/0.45/0.45▼ 0 100%
Patch 6.11buffJune 1, 2016 · Read the 6.11 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
HP regen0▲ 11.005
QEffect 560/70/80/90/100▲ 900/900/900/900/900
Patch 6.10nerfMay 17, 2016 · Read the 6.10 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
HP regen11.005▼ 0 100%
Patch 4.20tweakNovember 19, 2014 · Read the 4.20 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
Base AD Class-wide53▲ 55.536 5%
Base HP Class-wide350▲ 476 36%
Base armor Class-wide14▲ 19.04 36%
Base mana Class-wide240▲ 307.2 28%
HP regen Class-wide0▲ 11.005
Patch 4.14nerfAugust 13, 2014 · Read the 4.14 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
RCast range280/280/280▼ 1/1/1 100%
Patch 4.5nerfApril 6, 2014 · Read the 4.5 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
Base armor Class-wide10▲ 14 40%
QEffect 115/22/29/36/42▼ 12/18/23/29/34 19%
QEffect 250/75/100/125/150▼ 40/60/80/105/130 17%
QEffect 612/12/12/12/12▲ 16/16/16/16/16 33%
QRatio a10.125▲ 0.15 20%
QRatio a20.5▲ 0.55 10%
QRatio f212/12/12/12/12▲ 16/16/16/16/16 33%
REffect 1225/300/375▼ 200/270/340 10%
REffect 790/110/130▼ 80/100/120 9%
RRatio a10.8▼ 0.7 13%
RRatio a20.33▼ 0.3 9%
Patch 4.4buffMarch 18, 2014 · Read the 4.4 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
Move speed335▲ 340 1%
WCast range1525/1525/1525/1525/1525▼ 1325/1325/1325/1325/1325 13%
Patch 3.14tweak
AbilityWhat changedBeforeAfterSince 3.13 rework
QRatio f125▼ 24/23/22/21/20 12%
QRatio f2275/290/305/320/335▼ 12/12/12/12/12 96%
QRatio f40▲ 150/175/200/225/250/275/300/325/350/375/400/425/450/475/500/525/550/575
WRatio f20▲ 0.93
RRatio f20▲ 1.83
RRatio f40▲ 0.6
Patch 3.13VGUOctober 29, 2013 · Read the 3.13 notes
AbilityWhat changedBeforeAfterSince 3.13 rework
AD per level3▼ 2.7 10%
Base AD49.24▲ 53 8%
Base armor7▲ 10 43%
HP regen4.5▼ 0 100%
Move speed325▲ 335 3%
QCast range250/250/250/250/250▲ 350/350/350/350/350 40%
QCooldown0/0/0/0/0▼ 1/1/1/1/1
QCost70/80/90/100/110▲ 20/20/20/20/20 78%
QEffect 130/38/46/54/62▼ 15/22/29/36/42 37%
QEffect 230/26/22/18/14▲ 50/75/100/125/150
QEffect 31/1/2/2/2▲ 1/1/2/2/3 12%
QRatio a10.2▼ 0.125 38%
WCast range1000/1000/1000/1000/1000▲ 1525/1525/1525/1525/1525 52%
WCooldown10/10/10/10/10▼ 11/11/11/11/11 10%
WCost65/85/105/125/145▲ 70/80/90/100/110 14%
WEffect 185/135/185/235/285▼ 60/90/120/150/180 35%
WEffect 23/3/3/3/3▲ 12/18/24/30/36
WRatio a10.55▼ 0.45 18%
ECast range925/925/925/925/925▲ 970/970/970/970/970 5%
ECooldown13/12/11/10/9▼ 18/16/14/12/10 27%
ECost80/90/100/110/120▲ 85/85/85/85/85 15%
EEffect 180/135/190/245/300▼ 60/100/140/180/220 26%
EEffect 21/1.5/2/2.5/3● 2/2/2/2/2 0%
RCooldown120/105/90▲ 100/85/70 19%
RCost90/90/90▼ 100/100/100 11%
REffect 120/25/30▲ 225/300/375
REffect 210/15/20▲ 80/80/80
REffect 320/25/30▼ 1.5/1.5/1.5 94%
REffect 420/25/30▼ 0.12/0.12/0.12 100%
REffect 53/3/3▲ 500/690/865

Data Dragon’s archive begins at patch 3.8; everything older comes from the community-written League of Legends Wiki (CC BY-SA 3.0). Only the numbers are reproduced here — for the wording of non-numeric changes, follow the link.

V3.01Wiki
AbilityWhat changedBeforeAfter
New Effect · H-28G Evolution TurretRemoved · UPGRADE!!!
V1.0.0.152Wiki
AbilityWhat changedBeforeAfter
StatsMovement speed310▲ 335
V1.0.0.134Wiki
AbilityWhat changedBeforeAfter
Bug Fix · H-28G Evolution Turret
V1.0.0.133Wiki
AbilityWhat changedBeforeAfter
Bug Fix · H-28G Evolution Turret
V1.0.0.123Wiki
AbilityWhat changedBeforeAfter
New Effect · H-28G Evolution TurretBug Fix · H-28G Evolution Turret
V1.0.0.120Wiki
AbilityWhat changedBeforeAfter
H-28G Evolution TurretMana cost120/125/130/135/140▼ 70/80/90/100/110
Bug Fix · H-28G Evolution Turret
V1.0.0.109Wiki
AbilityWhat changedBeforeAfter
H-28G Evolution TurretRank 4 bonus health100▲ 125
H-28G Evolution TurretHealth gain21▼ (+ 15 per level)
H-28G Evolution TurretTurret magic resistance60▲ 80
Bug Fix · Techmaturgical Repair BotsNew Effect · H-28G Evolution TurretNew Effect · UPGRADE!!!Bug Fix · UPGRADE!!!
V1.0.0.99Wiki
AbilityWhat changedBeforeAfter
H-28G Evolution TurretMaximum turrets1/2/2/3/3● 1/2/2/2/2
H-28G Evolution TurretCooldown24/22/20/18/16● 26/23/20/17/14 seconds
CH-1 Concussion GrenadAP ratio55% AP▲ 60% AP
New Effect · H-28G Evolution TurretRemoved · CH-1 Concussion Grenade
V1.0.0.98Wiki
AbilityWhat changedBeforeAfter
H-28G Evolution TurretBase damage28/36/44/52/60▲ 30/38/46/54/62
H-28G Evolution TurretAP ratio25% AP▼ 20% AP
Removed · H-28G Evolution Turret
V1.0.0.97Wiki
AbilityWhat changedBeforeAfter
CH-1 Concussion GrenadAP ratio70% AP▼ 55% AP
CH-1 Concussion GrenadRange1000▼ 925
Bug Fix · H-28G Evolution Turret
V1.0.0.96Wiki
AbilityWhat changedBeforeAfter
CH-1 Concussion GrenadDamage to structures100%▼ 50%
CH-1 Concussion GrenadCooldown12/11/10/9/8▲ 13/12/11/10/9 seconds
V1.0.0.94Wiki
AbilityWhat changedBeforeAfter
Bug Fix · H-28G Evolution Turret
V1.0.0.81Wiki
AbilityWhat changedBeforeAfter
H-28G Evolution TurretTurret base damage20/26/32/38/44▲ 28/36/44/52/60
H-28G Evolution TurretMaximum turrets2/3/4/5/6▼ 1/2/2/3/3
Hextech Micro-RocketsCooldown20▼ 10 seconds
Hextech Micro-RocketsRockets1/1/2/2/3▲ 3 at all ranks
Hextech Micro-RocketsBase damage90/150/210/270/330▼ 85/135/185/235/285
Hextech Micro-RocketsAP ratio80% AP▼ 55% AP
UPGRADE!!!Mana cost100▼ 90
Removed · H-28G Evolution TurretNew Effect · H-28G Evolution TurretNew Effect · Hextech Micro-RocketsRemoved · UPGRADE!!!New Effect · UPGRADE!!!
V1.0.0.72Wiki
AbilityWhat changedBeforeAfter
Hextech Micro-RocketsRange1200▼ 1000
Bug Fix · H-28G Evolution Turret
V1.0.0.70Wiki
AbilityWhat changedBeforeAfter
Bug Fix · Hextech Micro-Rockets
V1.0.0.63Wiki
AbilityWhat changedBeforeAfter
StatsBasic attack projectile speed1200▲ 1400
StatsHealth per level70▲ 75
StatsDamage per level2.5▲ 3
H-28G Evolution TurretGold award15▼ 12
H-28G Evolution TurretTurret range550▲ 575
Hextech Micro-RocketsRocket targeting and acquisitioncompletely random at all times● one rocket at up to 1/1/2/2/3 random visible enemy champions
Hextech Micro-RocketsCooldown23▼ 20 seconds
Hextech Micro-RocketsMana cost80/105/130/155/180▼ 70/90/110/130/150
CH-1 Concussion GrenadProjectile speed650▲ 750
UPGRADE!!!Mana cost125▼ 100
Removed · CH-1 Concussion Grenade
V1.0.0.32Wiki
AbilityWhat changedBeforeAfter
CH-1 Concussion GrenadBlind duration1.5/2/2.5/3/3.5▼ 1/1.5/2/2.5/3 seconds
H-28G Evolution TurretTurret magic resistance120▼ 100
New Effect · H-28G Evolution Turret
V1.0.0.94(b)Wiki
AbilityWhat changedBeforeAfter
H-28G Evolution TurretDamage to structures100%▼ 50%
CH-1 Concussion GrenadCooldown14/13/12/11/10▼ 12/11/10/9/8 seconds

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