Historical referenceLeague Classic champion guideIndependent fan reference
the Mouth of the Abyss
Kog'Maw is listed in the community-datamined 60-champion starting roster. This guide uses Riot 3.15.5 history and does not claim launch-verified values or a best build.
Quick Answer
Kog'Maw's historical kit combines Icathian Surprise, Caustic Spittle, Bio-Arcane Barrage, Void Ooze, Living Artillery. Read the spell summaries together with the historical item direction and the explicit launch-verification limits.
Riot confirms the 60-champion composition rule but not the complete name list. Kog'Maw is published here from a dated community-datamining observation.
Historical kit
Summaries and displayed values come from the labelled historical snapshot. Observed and launch-verified fields remain empty until direct client evidence exists.
Historical function: Upon dying, Kog'Maw starts a chain reaction in his body which causes him to move faster and detonate after 4 seconds; dealing 100 + (25 x lvl) true damage to surrounding enemies.
Historical 3.15.5; launch values pending.
Historical function: Passive: Increases Kog'Maw's Attack Speed.
Historical 3.15.5; launch values pending.
Historical function: Kog'Maw's attacks gain range and deal a percent of the target's maximum health as magic damage.
Historical 3.15.5; launch values pending.
Historical function: Kog'Maw launches a peculiar ooze which damages all enemies it passes through and leaves a trail which slows enemies who stand on it.
Historical 3.15.5; launch values pending.
Historical function: Kog'Maw fires a living artillery shell at a great distance dealing damage and revealing targets.
Historical 3.15.5; launch values pending.
Ability names are stable between historical 3.15.5 and modern 16.14.1, but that does not prove equal values or mechanics; launch verification is still pending.
Kog'Maw, the Mouth of the Abyss, is documented here from Riot's 3.15.5 historical snapshot. The ADC / Mid labels are an editorial navigation taxonomy, not launch-patch usage statistics.
Three-layer build system
Only layers with qualifying evidence are shown. Creator-tested and launch-verified layers are absent until their evidence gates pass.
Historical Classic Build
Riot's 3.15.5 Summoner's Rift recommendation for Kog'Maw, preserved as a historical reading aid rather than a launch-patch best build.
Boots of Speed
Health Potion
Warding Totem (Trinket)
Doran's Blade
Berserker's GreavesDoran's BladeBerserker's Greaves
Blade of the Ruined King
Infinity Edge
Phantom Dancer
Last WhisperRunaan's Hurricane (Ranged Only)
Guardian Angel
Mercurial ScimitarUse Caustic Spittle, Bio-Arcane Barrage, Void Ooze, Living Artillery as the historical kit reference, then verify live cooldowns, costs and ratios before applying this item direction.
Historical reference only. No launch-client skill order, rune page, mastery page, matchup or performance claim has been verified.
Setup direction
A historical marksman framework built around attack damage, attack speed and critical-strike item progression.
Use it to understand older bottom-lane purchase sequencing and rune categories.
Internal links
Entity-specific checks
Riot confirms a 60-champion launch composition, but the complete name list used here is a community-datamined League Wiki observation. Kog'Maw's individual roster slot is therefore labelled community-datamined until Riot publishes or the launch client verifies it.
No. The displayed historical references come from Riot Data Dragon 3.15.5; observed and launch-verified value fields remain null.
No. It is a Riot-authored historical item direction with no win-rate, Tier or launch-match sample claim.
Source Ledger
Every historical record keeps its source era. League Wiki is identified as a structural or historical-data reference, never as Riot official.
| Source | Source Type | Version | Region | Verified Date | Used For | Evidence Status |
|---|---|---|---|---|---|---|
| League of Legends Classic | RIOT_CLASSIC_OFFICIAL | 2026 launch announcement | Global English | 2026-07-16 | official product identity, 60-champion scope, returning systems | OFFICIALLY_CONFIRMED |
| /dev: League of Legends Classic | RIOT_CLASSIC_OFFICIAL | 2026-07-15 article | Global English | 2026-07-16 | OG 40 plus 20 composition, Tier 3 runes, mastery-system scope | OFFICIALLY_CONFIRMED |
| League Wiki — League Classic | WIKI_REFERENCE_ONLY | Observed 2026-07-16; page edited 2026-07-15 | Community-maintained global reference | 2026-07-16 | 60-name roster observation, 141-item observation, 15-spell observation, information architecture | COMMUNITY_DATAMINED |
| Riot Data Dragon 3.15.5 | RIOT_HISTORICAL_DDRAGON | 3.15.5 | Historical static-data snapshot; not region-equivalent launch evidence | 2026-07-16 | champion identities, historical kits, historical recommended item sets, items, Tier 3 runes, masteries, summoner spells, historical assets | HISTORICAL_REFERENCE |
