Kog'Maw — ADC On-Hit Bloodrazor
Kog'Maw · ADC · patch 3.15.5 · by Lanekit Archive
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Stacking every on-hit effect with Bio-Arcane Barrage melted health bars regardless of armor — the meme-but-real 'machine gun' Kog of 2013. (Reconstructed from the documented Season 3 meta.)
Overview
Stacking every on-hit effect with Bio-Arcane Barrage melted health bars regardless of armor — the meme-but-real 'machine gun' Kog of 2013.
Reconstructed from the documented Season 3 meta (no single surviving source).
Summoner spells: Flash + Cleanse
Items
Item Build — 15,450g total
Start
Doran's Blade 440gGood starting item for attackers+80 Health
+8 Attack Damage
Passive: Basic attacks restore Health on hit. (3 Health for ranged champions and 5 Health for melee champions.)
Health Potion 35gConsume to restore Health over timeLimited to 5 at one time.
Click to Consume: Restores 150 Health over 15 seconds.
Doran's Blade 440gGood starting item for attackers+8 Attack Damage
Health Potion 35gConsume to restore Health over timeCore
Madred's Bloodrazor 3,800g 40 Attack Damage
40% Attack Speed
25 Armor
Seeing Red : Attacks deal 4% of the target's maximum Health as bonus magic damage on-hit.
Deals a maximum of 120 bonus damage to monsters. 
Wit's End 2,400gDeals bonus magic damage on basic attacks+42% Attack Speed
+25 Magic Resist
UNIQUE Passive: Basic attacks deal 42 bonus magic damage on hit.
UNIQUE Passive: Basic attacks steal 5 Magic Resist from the target on hit (stacks up to 5 times.)
Berserker's Greaves 900gEnhances Movement Speed and Attack Speed +20% Attack Speed
UNIQUE Passive - Enhanced Movement: +45 Movement Speed
(Unique Passives with the same name don't stack.)
Madred's Bloodrazor 3,800gWit's End 2,400gDeals bonus magic damage on basic attacks+25 Magic Resist
Berserker's Greaves 900gEnhances Movement Speed and Attack Speed(Unique Passives with the same name don't stack.)
FullBerserker's Greaves 900gEnhances Movement Speed and Attack Speed +20% Attack Speed
UNIQUE Passive - Enhanced Movement: +45 Movement Speed
(Unique Passives with the same name don't stack.)Madred's Bloodrazor 3,800g 40 Attack Damage
40% Attack Speed
25 Armor
Seeing Red : Attacks deal 4% of the target's maximum Health as bonus magic damage on-hit.
Deals a maximum of 120 bonus damage to monsters. +42% Attack Speed
+25 Magic Resist
UNIQUE Passive: Basic attacks deal 42 bonus magic damage on hit.
UNIQUE Passive: Basic attacks steal 5 Magic Resist from the target on hit (stacks up to 5 times.)
Blade of The Ruined King 3,200g3.15 name: Blade of the Ruined KingDeals damage based on target's Health, can steal Health and Movement Speed+25 Attack Damage
+40% Attack Speed
+15% Life Steal
UNIQUE Passive: Basic attacks deal 5% of the target's current Health in bonus physical damage (max 60 vs. monsters and minions) on hit.
UNIQUE Active: Deals 15% of target champion's maximum Health (min. 100) as physical damage, heals for the same amount, and steals 30% of the target's Movement Speed for 3 seconds (90 second cooldown).
Runaan's Hurricane 2,400g3.15 name: Runaan's Hurricane (Ranged Only)Ranged attacks fire two bolts at nearby enemies+70% Attack Speed
UNIQUE Passive: When basic attacking, bolts are fired at up to 2 enemies near the target, each dealing 10 (+50% of Attack Damage) physical damage. These bolts apply on-hit effects.
Guardian Angel 2,750gPeriodically revives champion upon death+50 Armor
+40 Magic Resist
UNIQUE Passive: Upon taking lethal damage, restores 30% of maximum Health and Mana after 4 seconds of stasis (5 minute cooldown).
Berserker's Greaves 900gEnhances Movement Speed and Attack Speed(Unique Passives with the same name don't stack.)
Madred's Bloodrazor 3,800gWit's End 2,400gDeals bonus magic damage on basic attacks+25 Magic Resist
Blade of The Ruined King 3,200g3.15 name: Blade of the Ruined KingDeals damage based on target's Health, can steal Health and Movement Speed+40% Attack Speed
+15% Life Steal
Runaan's Hurricane 2,400g3.15 name: Runaan's Hurricane (Ranged Only)Ranged attacks fire two bolts at nearby enemiesGuardian Angel 2,750gPeriodically revives champion upon death+40 Magic Resist
Gold efficiency (raw stats)
| Item | Cost | Stat value | Efficiency |
|---|---|---|---|
| Berserker's Greaves | 900g | 1,252g | 139% |
| Madred's Bloodrazor | 3,800g | 0g | 0% |
| Wit's End | 2,400g | 1,900g | 79% |
| Blade of the Ruined King | 3,200g | 2,233g | 70% |
| Runaan's Hurricane (Ranged Only) | 2,400g | 2,333g | 97% |
| Guardian Angel | 2,750g | 1,800g | 65% |
Gold values derived from patch 3.15 basic items: 1 AD = 36g, 1 AP = 21.8g, 1 Health = 2.6g, 1 Armor = 20g, 1 MR = 20g. Passives and actives are not priced — items below 100% raw efficiency pay for their effects.
Runes
Rune Page
Greater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armorGreater Seal of Armor · Tier 3+1.41 Armor+1.41 armor
Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level+0.15 magic resist per level (+2.7 at champion level 18)
Greater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speedGreater Mark of Attack Speed · Tier 3+1.7% Attack Speed+1.7% attack speed
Greater Quintessence of Attack Speed · Tier 3+3.4% Attack Speed+3.4% attack speedGreater Quintessence of Attack Speed · Tier 3+3.4% Attack Speed+3.4% attack speedGreater Quintessence of Attack Speed · Tier 3+3.4% Attack Speed+3.4% attack speedStatistics
Attack Speed
+25.47%
Armor
+12.66
Magic Resist per level
+1.34
×9Greater Mark of Attack Speed×9 Greater Mark of Attack Speed · Tier 3+1.7% Attack Speed (each)+15.28% Attack Speed total+1.7% attack speed×9Greater Seal of Armor×9 Greater Seal of Armor · Tier 3+1.41 Armor (each)+12.66 Armor total+1.41 armor×9Greater Glyph of Scaling Magic Resist×9 Greater Glyph of Scaling Magic Resist · Tier 3+0.15 Magic Resist per level (each)+1.34 Magic Resist per level total+0.15 magic resist per level (+2.7 at champion level 18)×3Greater Quintessence of Attack Speed×3 Greater Quintessence of Attack Speed · Tier 3+3.4% Attack Speed (each)+10.19% Attack Speed total+3.4% attack speedMasteries (21/9/0)
Mastery Page
O 21 / D 9 / U 030/30
Offense
Double-Edged Sword (1/1 · Offense)Melee - Deal an additional 2% damage and receive an additional 1% damage<br>Ranged - Deal an additional 1.5% damage and receive an additional 1.5% damage
Fury (4/4 · Offense)+5% Attack Speed
Sorcery (0/4 · Offense)+1.25% Cooldown ReductionAt 4 ranks: +5% Cooldown Reduction
Butcher (0/1 · Offense)Basic attacks and single target spells deal an additional 2 damage to minions and monsters<br><br>This does not trigger off of area of effect damage or damage over time effects
Expose Weakness (1/1 · Offense)Damaging an enemy with a spell increases allied champions' damage to that enemy by 1% for the next 3 seconds
Brute Force (3/3 · Offense)+10 Attack Damage at level 18 (0.55 Attack Damage per level)
Mental Force (0/3 · Offense)+6 Ability Power at level 18 (+0.33 Ability Power per level)At 3 ranks: +16 Ability Power at level 18 (0.89 Ability Power per level)
Feast (0/1 · Offense)Killing a unit restores 2 Health and 1 Mana
Spell Weaving (0/1 · Offense)Damaging an enemy champion with a Basic Attack increases Spell Damage by 1%, stacking up to 3 times (max 3% damage increase)
Martial Mastery (1/1 · Offense)+4 Attack Damage
Arcane Mastery (0/1 · Offense)+6 Ability Power
Executioner (3/3 · Offense)Increases damage dealt to champions below 50% Health by 5%
Blade Weaving (0/1 · Offense)Damaging an enemy champion with a spell increases Basic Attack Damage by 1%, stacking up to 3 times (max 3% damage increase)
Warlord (3/3 · Offense)Increases Bonus Attack Damage by 5%
Archmage (0/3 · Offense)Increases Ability Power by 2%At 3 ranks: Increases Ability Power by 5%
Dangerous Game (1/1 · Offense)Killing a champion restores 5% missing Health and Mana
Frenzy (0/1 · Offense)Critical hits grant +5% Attack Speed for 3 seconds (stacks up to 3 times)
Devastating Strikes (3/3 · Offense)+6% Armor and Magic Penetration
Arcane Blade (0/1 · Offense)Basic Attacks also deal bonus magic damage equal to 5% of Ability Power
Havoc (1/1 · Offense)+3% increased damageDefense
Block (2/2 · Defense)Reduces incoming damage from champion basic attacks by 2
Recovery (2/2 · Defense)+2 Health per 5 seconds
Enchanted Armor (1/2 · Defense)Increases bonus Armor and Magic Resistance by 2.5%At 2 ranks: Increases bonus Armor and Magic Resistance by 5%
Tough Skin (0/2 · Defense)Reduces damage taken from neutral monsters by 1<br><br>This does not affect lane minionsAt 2 ranks: Reduces damage taken from neutral monsters by 2<br><br>This does not affect lane minions
Unyielding (1/1 · Defense)Melee - Reduces all incoming damage from champions by 2<br>Ranged - Reduces all incoming damage from champions by 1
Veteran's Scars (3/3 · Defense)+36 Health
Bladed Armor (0/1 · Defense)Taking Basic Attack Damage from neutral monsters cause them to bleed, dealing damage equal to 1% of their current Health each second<br>This does not work against lane minions
Oppression (0/1 · Defense)Reduces damage taken by 3% from enemies that have impaired movement (slows, snares, taunts, stuns, etc.)
Juggernaut (0/1 · Defense)+3% Maximum Health
Hardiness (0/3 · Defense)+2 ArmorAt 3 ranks: +5 Armor
Resistance (0/3 · Defense)+2 Magic ResistAt 3 ranks: +5 Magic Resistance
Perseverance (0/3 · Defense)Regenerates .7% missing Health every 5 secondsAt 3 ranks: Regenerates +2% of missing Health every 5 seconds
Swiftness (0/1 · Defense)Reduces the effectiveness of slows by 10%
Reinforced Armor (0/1 · Defense)Reduces damage taken by critical strikes by 10%
Evasive (0/1 · Defense)Reduces damage taken by 4% from Area of Effect magic damage
Second Wind (0/1 · Defense)Increases self-healing, Health Regen, Lifesteal, and Spellvamp by 10% when below 25% Health
Legendary Guardian (0/4 · Defense)+1 Armor and 0.5 Magic Resist for each nearby enemy championAt 4 ranks: +4 Armor and 2 Magic Resist for each nearby enemy champion
Runic Blessing (0/1 · Defense)Start the game with a 50 Health shield. This shield regenerates each time after respawning
Tenacious (0/1 · Defense)Reduces the duration of crowd control effects by 15%Utility
Phasewalker (0/1 · Utility)Reduces the casting time of Recall by 1 second<br><br>Dominion - Reduces the casting time of Enhanced Recall by 0.5 seconds
Fleet of Foot (0/3 · Utility)+0.5% Movement SpeedAt 3 ranks: +1.5% Movement Speed
Meditation (0/3 · Utility)+1 Mana Regen per 5 secondsAt 3 ranks: +3 Mana Regen per 5 seconds
Scout (0/1 · Utility)Increases the cast range of trinket items by 15%
Summoner's Insight (0/3 · Utility)Reduces the cooldown of Summoner Spells by 4%At 3 ranks: Reduces the cooldown of Summoner Spells by 10%
Strength of Spirit (0/1 · Utility)+1 Health Regen per 5 seconds for every 300 maximum Mana
Alchemist (0/1 · Utility)Increases the duration of potions and elixirs by 10%
Greed (0/3 · Utility)+0.5 Gold every 10 secondsAt 3 ranks: +1.5 Gold every 10 seconds
Runic Affinity (0/1 · Utility)Increases the duration of shrine, relic, quest, and neutral monster buffs by 20%
Vampirism (0/3 · Utility)+1% Lifesteal and SpellvampAt 3 ranks: +3% Lifesteal and Spellvamp
Culinary Master (0/1 · Utility)Health potions are upgraded into Biscuits that restore an additional 20 Health and 10 Mana instantly upon consumption
Scavenger (0/1 · Utility)+1 Gold each time an ally kills a nearby lane minion
Wealth (0/1 · Utility)+40 Starting Gold
Expanded Mind (0/3 · Utility)+2% increased maximum ManaAt 3 ranks: +5% increased maximum Mana
Inspiration (0/2 · Utility)+5 Experience every 10 seconds while near a higher level allied championAt 2 ranks: +10 Experience every 10 seconds while near a higher level allied champion
Bandit (0/1 · Utility)Melee - Grants +15 Gold on champion kill or assist<br>Ranged - Grants +3 Gold each time an enemy champion is attacked. This cannot trigger on the same champion more than once every 5 seconds
Intelligence (0/3 · Utility)+2% Cooldown Reduction and reduces the cooldown of Activated Items by 4%At 3 ranks: +5% Cooldown Reduction and reduces the cooldown of Activated Items by 10%
Wanderer (0/1 · Utility)+5% Movement Speed out of combatSkill Order
Skill Priority
RLiving Artillery (R)Kog'Maw fires a living artillery shell at a great distance dealing damage and revealing targets. Additionally, multiple Living Artilleries in a short period of time cause them to cost additional mana.›
WBio-Arcane Barrage (W)Kog'Maw's attacks gain range and deal a percent of the target's maximum health as magic damage. ›
EVoid Ooze (E)Kog'Maw launches a peculiar ooze which damages all enemies it passes through and leaves a trail which slows enemies who stand on it.›
QCaustic Spittle (Q)Passive: Increases Kog'Maw's Attack Speed. Active: Kog'Maw launches a corrosive projectile which deals magic damage and corrodes the target's Armor and Magic Resist for 4 seconds.The Math
Level 18 with full build
| Attack damage | 122 | Ability power | 0 |
| Health | 1,868 | Attack speed | 2.108 |
| Armor | 119.5 | Magic resist | 95 |
| Crit chance | 0% | Life steal | 0% |
Derived
| Sustained auto-attack DPS | 257 |
| Effective HP vs physical | 4,100 |
| Effective HP vs magic | 3,643 |
| Full build cost | 15,450g |
DPS = AD × AS × (1 + crit × (critMultiplier − 1)); crit multiplier 2.0 (2.5 with Infinity Edge). EHP = HP × (1 + resist ⁄ 100). Season 3 uses linear per-level stat growth; ability damage is champion-specific and not modeled here.
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