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League of Legends

Heimerdinger: change history

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17 changes across 5 patches (May 27, 2026 to Sep 9, 2026), newest first.

Buff 12Nerf 3Adjust 1Fix 1
  1. League of Legends Patch 26.18Buff 5Official notes ↗
    Buff
    League Classic Base Stats · Base Health Regeneration
    Heimerdinger's base health regeneration increases from 4.5 to 5.05.
    4.5→5.05
    Source line
    Base Health Regeneration: 4.5 → 5.05
    Buff
    League Classic Q - H-28G Evolution Turret · Base Damage
    Base damage on Heimerdinger's H-28G Evolution Turret (Q) increases from 28 / 36 / 44 / 52 / 60 to 30 / 38 / 46 / 54 / 62.
    28 / 36 / 44 / 52 / 60→30 / 38 / 46 / 54 / 62
    Source line
    Base Damage: 28 / 36 / 44 / 52 / 60 → 30 / 38 / 46 / 54 / 62
    Buff
    League Classic W - Hextech Micro-Rockets · Mana Cost
    Mana cost on Heimerdinger's Hextech Micro-Rockets (W) decreases from 65 / 85 / 105 / 125 / 145 to 60 / 75 / 90 / 105 / 120.
    65 / 85 / 105 / 125 / 145→60 / 75 / 90 / 105 / 120
    Source line
    Mana Cost: 65 / 85 / 105 / 125 / 145 → 60 / 75 / 90 / 105 / 120
    Buff
    League Classic E - CH-1 Concussion Grenade · Cooldown
    Cooldown on Heimerdinger's Concussion Grenade (E) decreases from 14 / 13 / 12 / 11 / 10s to 13 / 12 / 11 / 10 / 9s.
    14 / 13 / 12 / 11 / 10s→13 / 12 / 11 / 10 / 9s
    Source line
    Cooldown: 14 / 13 / 12 / 11 / 10s → 13 / 12 / 11 / 10 / 9s
    Buff
    League Classic E - CH-1 Concussion Grenade · Cast Range
    Cast range on Heimerdinger's Concussion Grenade (E) increases from 920 to 925.
    920→925
    Source line
    Cast Range: 920 → 925
  2. League of Legends Patch 26.17Adjust 1Fix 1Official notes ↗
    Adjust
    League Classic W - Hextech Micro-Rockets · Range Display
    The range display for Heimerdinger's Hextech Micro-Rockets (W) now accurately shows the actual missile range.
    Now accurately displays the actual missile range
    Source line
    Range Display: Now accurately displays the actual missile range.
    Fix
    League Classic R - UPGRADE!!! · Bug Fix
    Fixed a bug with Heimerdinger's UPGRADE!!! (R) where R-empowered turrets dealt double damage.
    Source line
    Bug Fix: Fixed a bug where R-empowered turrets dealt double damage.
  3. League of Legends Patch 26.16Buff 1Nerf 3Official notes ↗
    Nerf
    League Classic Q - H-28G Evolution Turret · Base Attack Damage
    Base attack damage on Heimerdinger's H-28G Evolution Turret (Q) decreases from 30 / 38 / 46 / 54 / 62 to 28 / 36 / 44 / 52 / 60.
    30 / 38 / 46 / 54 / 62→28 / 36 / 44 / 52 / 60
    Source line
    Base Attack Damage: 30 / 38 / 46 / 54 / 62 → 28 / 36 / 44 / 52 / 60
    Nerf
    League Classic W - Hextech Micro-Rockets · Base Damage
    Base damage on Heimerdinger's Hextech Micro-Rockets (W) decreases from 85 / 135 / 185 / 235 / 285 to 70 / 120 / 170 / 220 / 270.
    85 / 135 / 185 / 235 / 285→70 / 120 / 170 / 220 / 270
    Source line
    Base Damage: 85 / 135 / 185 / 235 / 285 → 70 / 120 / 170 / 220 / 270
    Nerf
    League Classic E - CH-1 Concussion Grenade · Cooldown
    Cooldown on Heimerdinger's Concussion Grenade (E) increases from 13 / 12 / 11 / 10 / 9 to 14 / 13 / 12 / 11 / 10.
    13 / 12 / 11 / 10 / 9→14 / 13 / 12 / 11 / 10
    Source line
    Cooldown: 13 / 12 / 11 / 10 / 9 → 14 / 13 / 12 / 11 / 10
    Buff
    Arena Q - H-28 G Evolution Turret · Q Base Damage
    Base damage on Heimerdinger's turret (Q) increases from 4–12 to 7–23.
    4–12→7–23
    Source line
    Q Base Damage: 4-12 → 7-23
  4. League of Legends Patch 26.14Buff 2Official notes ↗
    Buff
    Arena Q Beam Base Damage
    Heimerdinger's Q beam base damage increases from 30–90 to 40–120.
    30–90→40–120
    Source line
    Q Beam Base Damage: 30 - 90 → 40 - 120
    Buff
    Arena Beam Ability Power Ratio
    Heimerdinger's beam ability power ratio increases from 45% to 55%.
    45%→55%
    Source line
    Beam Ability Power Ratio: 45% → 55%
  5. League of Legends Patch 26.11Buff 4Official notes ↗
    Buff
    Summoner's Rift Q - H-28G Evolution Turret · Turret Attack Range
    Turret attack range on Heimerdinger's Evolution Turret (Q) increases from 530 to 550.
    530→550
    Source line
    Turret Attack Range: 530 → 550
    Buff
    Summoner's Rift Q - H-28G Evolution Turret · Turret Vision Range
    Turret vision range on Heimerdinger's Evolution Turret (Q) increases from 585 to 650.
    585→650
    Source line
    Turret Vision Range: 585 → 650
    Buff
    Summoner's Rift Q - H-28G Evolution Turret · Turret Range
    Heimerdinger's Evolution Turrets (Q) now gain 50 additional range against minions if nothing else is in range.
    Turrets now gain 50 additional range against minions if nothing else is in range
    Source line
    NEW Turret Range: Turrets now gain 50 additional range against minions if nothing else is in range
    Buff
    Summoner's Rift E - CH-2 Electron Storm Grenade · Vision of target location
    Vision of the target location on Heimerdinger's Electron Storm Grenade (E) increases from 1s to 1.25s.
    1s→1.25s
    Source line
    Vision of target location: 1 second → 1.25 seconds