Dr. Mundo resists the first Immobilizing effect that hits him, instead losing Health and dropping a chemical cannister nearby. Dr. Mundo can pick it up by walking over it, restoring Health and reducing this Ability's Cooldown.
Dr. Mundo also has significantly increased Health regeneration.
QInfected Bonesaw4s
Dr. Mundo throws an infected bonesaw, dealing damage to the first enemy hit based on their current health and slowing them.
WHeart Zapper17/16.5/16/15.5/15s
Dr. Mundo electrocutes himself, dealing persistent damage to nearby enemies and storing a portion of damage he takes. At the end of the duration or on Recast, Dr. Mundo deals a burst of damage to nearby enemies. If the burst hit an enemy, he heals a percentage of the stored damage.
EBlunt Force Trauma9/8.25/7.5/6.75/6s
Passive - Dr. Mundo gains bonus Attack Damage, increasing based on his max Health.
Active - Dr. Mundo slams his “medical” bag into an enemy, dealing additional damage based on his missing Health. If the enemy dies they are swatted away, dealing damage to enemies they pass through.
RMaximum Dosage120s
Dr. Mundo pumps himself with chemicals, instantly healing a percent of his missing Health. He then gains Move Speed and regenerates a portion of his maximum Health over a long duration.
Monster damage cap reduced to 250 to 550 from 300 to 600.Nerf
Blunt Force Trauma
Monster damage reduced to 140% from 200%.Nerf
25.24· Dec 3, 2025Nerfed
Infected Bonesaw
Monster damage cap reduced to 300 to 600 from 350 to 650.Nerf
25.23· Nov 19, 2025Buffed
Blunt Force Trauma
Bug Fix: Maximum bonus damage now correctly applies at 70% missing health, instead of being activated at 30% missing health.Buff
Bonus attack damage increased to 2 to 3.2% maximum health from 2 to 2.8%.Buff
25.21· Oct 22, 2025Adjusted
Stats
Armor growth increased to 4.5 from 3.7.Buff
Blunt Force Trauma
Active minimum health ratio reduced to 5% bonus health from 7%.Nerf
Active maximum health ratio reduced to 7% bonus health from 9.8%.Nerf
25.5
Stats
Base health increased to 640 from 613.
35 older patches
14.24
Blunt Force Trauma
Bonus attack damage reduced to 2 to 2.8% maximum health from 2 to 3%.
14.20
Blunt Force Trauma
Bonus attack damage reduced to 2 to 3% maximum health from 2 to 3.4%.
14.15
Goes Where He Pleases
Bug Fix: No longer ignores Aurora Between Worlds boundary collision push.
13.22
Blunt Force Trauma
Bonus attack damage increased to 2 to 3.4% maximum health from 2 to 3%.
13.21
Blunt Force Trauma
Bonus attack damage reduced to 2 to 3% maximum health from 2 to 4%.
Bonus damage amplifier reduced to 0% to 40% from 0% to 60%.
Maximum bonus base damage reduced to 7 to 63 from 8 to 72.
Maximum bonus damage health ratio reduced to 9.8% bonus health from 11.2%.
13.16
Infected Bonesaw
Bug Fix: The missile's visuals now correspond to its hitbox better.
13.6
Stats
Base health regeneration increased to 7 from 6.5.
Health regeneration growth reduced to 0.5 from 0.55.
Heart Zapper
Recast timer reduced to 0.5 seconds from 1.
Blunt Force Trauma
Monster damage increased to 200% from 150%.
13.5
Maximum Dosage
Bug Fix: Now properly gains the base health instantly upon cast, rather than after a 0-0.25-second delay.
13.1
Stats
Base health reduced to 613 from 653.
Armor growth reduced to 3.7 from 4.2.
Blunt Force Trauma
Bonus attack damage reduced to 2 to 4% maximum health from 2.5 to 4.5%.
Bug Fix: No longer deals more damage to monsters than intended.
12.23
Stats
Health regeneration growth reduced to 0.55 to 0.75.
Goes Where He Pleases
Health regeneration reduced to 0.4 to 0.65 for 6;0.75 to 1.25 for 6;1.4;1.55;1.7;1.9;2.1;2.3maximum health from 0.4 to 0.65 for 6;0.75 to 1.25 for 6;1.4;1.55;1.75;1.95;2.25;2.5.
Health cost increased to 4% current health from 3%.
Infected Bonesaw
Health cost changed to 50 to 90 from 60 at all ranks.
12.22
General
Several inconsistencies in his ability tooltips have been resolved.
12.12
Goes Where He Pleases
Health regeneration reduced to 0.8% to 1.6%maximum health from 1% to 2%.
Maximum Dosage
Increased base health reduced to 8 to 15% missing health from 10 to 20%.
12.10
Stats
Base health increased to 653 from 583.
Health growth increased to 103 from 89.
Armor growth increased to 4.2 from 3.
Magic resistance growth increased to 2.05 from 1.25.
Goes Where He Pleases
Bug Fix: Crowd control immunity is no longer consumed by Blast Cone triggered by allies.
Maximum Dosage
Increased base health reduced to 10 to 20% missing health from 15 to 25%.
12.4
Stats
Attack damage growth reduced to 3.5 from 4.2.
Maximum Dosage
Cooldown increased to 110 seconds at all ranks from 110 to 90.
11.24
Stats
Base health regeneration reduced to 6.5 from 8.
Infected Bonesaw
Minimum damage reduced to 80 to 280 from 80 to 300.
11.21
Blunt Force Trauma
New Effect: Now trigger spell effects when dealing damage.
11.18
Goes Where He Pleases
Bug Fix: Fixed a bug where he would ignore all subsequent CC from a dragon or Rift Herald after it broke his Goes Where He Pleases spell shield once.
Infected Bonesaw
Damage cap against monsters increased to 350 to 650 from 300 to 500.
Maximum Dosage
New Effect: On cast, now grants him 15 to 25% missing health as base health for the duration of the ability.
Removed: No longer heals for 20% missing health on cast.
11.17
Goes Where He Pleases
Bug Fix: Fixed a bug where, when an enemy immobilized Dr. Mundo while standing on top of him, Goes Where He Pleases' canister would get destroyed before it hit the ground.
11.14
Stats
Base attack speed increased to 0.72 from 0.67.
Goes Where He Pleases
Health regeneration reduced to 1% to 2%maximum health from 2% at all levels.
Cooldown increased to 60 to 15 seconds from 45 to 15.
Infected Bonesaw
Health cost refund against monsters increased to 100% from 50%.
Blunt Force Trauma
Monster damage increased to 200% from 140%.
New Effect: Now always swats away small monsters.
11.13
Heart Zapper
Bug Fix: Once again heals back Dr. Mundo's grey health for hitting a champion.
Goes Where He Pleases
Bug Fix: Now prevents Realm of Death from bringing Dr. Mundo to the Death Realm; no longer prevents the initial slow being applied.
Blunt Force Trauma
Bug Fix: Now more fluidly turns before the attack animation.
Bug Fix: Voice lines are no longer replaced by his base skin's.
9.7
Infected Cleaver
Damage increased to 20 to 30% of target's current health from 15 to 25%.
Masochism
Minimum bonus attack damage increased to 40 to 100 from 30 to 90.
Maximum bonus attack damage unchanged.
9.5
Masochism
Magic resistance per stack increased to 3% from 2%.
Maximum magic resistance stack reduced to 2 to 11 from 3 to 15.
Maximum magic resistance increased to (2 to 11)*3% from (3 to 15)*2%.
9.4
Infected Cleaver
Throwing animation updated.
9.1
Sadism
New Effect: Ability icon HUD now shows the remaining duration of the ability.
8.24
General
Updated sound and visual effects.
New basic attack trail and hit VFX.
New basic attack hit SFX.
Infected Cleaver
New trail VFX added.
Hit VFX improved.
Clearer throw and hit SFX.
Burning Agony
VFX now shows actual area of effect.
Enemies are visually set on fire when damaged.
Activation SFX is clearer.
Masochism
Blunt Force Trauma
Health cost changed to 10 to 70 from 20 to 60.
Maximum Dosage
Cooldown increased to 120 seconds from 110.
Stats
Attack damage growth reduced to 2.5 from 3.5.
Base attack speed reduced to 0.67 from 0.72.
Base magic resistance reduced to 29 from 32.
Magic resistance growth increased to 2.3 from 2.05.
Goes Where He Pleases
Health cost reduced to 3% current health from 7%.
Heal reduced to 4% maximum health from 8%.
Health regeneration changed to 0.4 to 0.65 for 6;0.75 to 1.25 for 6;1.4;1.55;1.75;1.95;2.25;2.5maximum health from 0.8% to 1.6%.
Infected Bonesaw
Health cost increased to 60 from 50.
Heart Zapper
Health cost increased to 8% current health from 5%.
New Effect: Now heals for 50% of grey health stored if no enemies were hit.
Damage stored reduced to 25% at all ranks from 25 to 45%.
New Effect: Now stores 80% to 95% of damage taken in the first 0.75 seconds.
Duration reduced to 3 seconds from 4.
Blunt Force Trauma
Cooldown increased to 9 to 6 seconds from 8 to 6.
Health cost increased to 20 to 60 from 10 to 50.
Monster damage reduced to 150% from 200%.
Bonus attack damage changed to 2.5 to 4.5% maximum health from 15 to 35.
Removed: Bonus attack damage is no longer increased by up to 40 to 80 based on missing health, reaching maximum value at 70% missing health.
Maximum Dosage
Removed: No longer grants 4 to 7% bonus health as bonus attack damage.
Increased base health increased to 15 to 25% missing health from 8 to 15%.
New Effect: At rank 3, the increased base health and health regeneration are now increased by 5% per enemy champion within 1200 units at the time of the ability being cast.
Health regeneration reduced to 20 to 60% maximum health from 20 to 70%.
New Effect: Now periodically causes him to ignore the next immobilizing effect.
Preventing an effect makes him lose 7% of his current health and launches a canister that lands 525 units in the general direction of its source, remaining on the ground for 7 seconds. Dr. Mundo can pick it up to heal himself for 8% of his maximum health and reduce the cooldown of this effect by 15 seconds.
Enemy champions can destroy the canister by walking over it before Dr. Mundo reaches it.
Goes Where He Pleases' cooldown resets upon respawning.
Cooldown:45 to 15 seconds.
Health regeneration reduced to 2% maximum health from 2.5%.
Infected Bonesaw (Q)
Health cost reduced to 50 at all ranks from 50 to 90.
Minimum damage increased to 80 to 300 from 80 to 280.
Maximum damage to monsters changed to 150 to 450 from 100 to 500.
Removed: No longer restores health equal to the full health cost if Infected Bonesaw kills a non-champion.
Removed: Damage is no longer capped at 100 to 500 against minions.
Heart Zapper (W)
No longer a toggle spell.
Removed: No longer grants 30% tenacity while toggled on.
New Active:Dr. Mundo charges up a defibrillator for 4 seconds, dealing a total of 80 to 320magic damage over the duration, with each tick occuring every 0.25 seconds, to nearby enemies and storing 25 to 45% of the post-mitigation damage he takes. Heart Zapper can be recast after 1 second for the duration, and does so automatically at the end of the duration.
New Recast:Dr. Mundo detonates the defibrillator, dealing 20 to 80(+ 7% bonus health)magic damage to nearby enemies and healing himself for 100% of all the damage stored if at least one enemy is hit, reduced to 50% if no champion is hit.
Health cost changed to 5% current health on-cast from 10 to 30 health per second while toggled on.
Cooldown increased to 17 to 15 seconds from 4 seconds at all ranks.
Blunt Force Trauma (E)
Removed Passive: Taking magic damage or paying a health cost increases Dr. Mundo'smagic resistance by 3% for 2 seconds, stacking up to 2 to 11 times.
Removed Effect: On activation, grants 30 to 90bonus attack damage for 5 seconds, increased by an amount based on his percentage health, up to a maximum total of 50 to 170 at 100% missing health.
New Passive: Now always passively grants 15 to 35bonus attack damage, increased based on his missing health, up to a maximum total of 40 to 80 at 70% missing health.
Health cost reduced to 10 to 50 from 25 to 65.
Cooldown increased to 8 to 6 seconds after the attack from 6 to 4 seconds on-cast.
New Effect: Empowered attack's windup is now uncancellable.
Bonus attack range increased to 50 from 25.
New Effect: Attack now applies against structures, consuming the effect and dealing the bonus damage.
Damage of the empowered attack changed to 5 to 45(+ 7% bonus health) from 4 to 6% maximum health.
New Effect: Now increases the bonus damage to the primary target by 0% to 60%.
New Effect: Now deals 40% increased damage to minions and non-epic monsters.
New Effect: Now knocks enemies killed by the attack away in a line, dealing 100% AD plus Blunt Force Trauma's minimum bonus damage to other enemies they pass through.
Maximum Dosage (R)
Removed:25% current health health cost.
New Effect: Now additionally heals him on-cast for 20% of his missing health.
Duration reduced to 10 seconds from 12 seconds.
New Effect: Now additionally grants (4 to 7% bonus health)bonus attack damage for the duration.
Total health regeneration reduced to 20 to 70% maximum health from 60 to 110%.
New buff VFX on wrists.
Zaun SFX elements added.
Sadism
Initial burst VFX are bigger.
Effect VFX are easier to see and read more as a heal.
