
Battlemage · magic (AP) damage
Gragas is a Battlemage that deals magic (AP) damage and brings airborne, stun, slow. Some of their lockdown (airborne) ignores tenacity, so you dodge it; you can't cleanse or Merc' through it. Below is Gragas's highest-win-rate build from high-elo games; open the counter-build tool to tune it against your specific enemy team.

Gragas periodically heals upon using a skill.

Gragas rolls his cask to a location, which can be activated to explode or will explode on its own after 4 seconds. The potency of the explosion increases over time. Enemies struck by the blast have their Move Speed slowed.

Gragas samples his latest brew for 1 second. After finishing, he becomes boisterous and belligerent, dealing magic damage to all nearby enemies on his next basic attack and reducing damage received.

Gragas charges to a location and collides with the first enemy unit he comes across, dealing damage to all nearby enemy units and stunning them.

Gragas hurls his cask to a location, dealing damage and knocking back enemies caught in the blast radius.
E Body Slam
R Explosive CaskStuntenacity helpsFROM
E Body SlamSlowignores tenacityFROM
Q Barrel RollHover a crowd-control type to see which ability it comes from.
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm
Inspiration
Glacial Augment
Unsealed Spellbook
First Strike
Hextech Flashtraption
Magical Footwear
Cash Back
Triple Tonic
Time Warp Tonic
Biscuit Delivery
Cosmic Insight
Approach Velocity
Jack Of All Trades

Based on 3968 games · 50.5% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Domination
Electrocute
Dark Harvest
Hail of Blades
Cheap Shot
Taste of Blood
Sudden Impact
Sixth Sense
Grisly Mementos
Deep Ward
Treasure Hunter
Relentless Hunter
Ultimate Hunter
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 777 games · 52.6% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Domination
Electrocute
Dark Harvest
Hail of Blades
Cheap Shot
Taste of Blood
Sudden Impact
Sixth Sense
Grisly Mementos
Deep Ward
Treasure Hunter
Relentless Hunter
Ultimate Hunter
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 717 games · 50.2% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Domination
Electrocute
Dark Harvest
Hail of Blades
Cheap Shot
Taste of Blood
Sudden Impact
Sixth Sense
Grisly Mementos
Deep Ward
Treasure Hunter
Relentless Hunter
Ultimate Hunter
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 273 games · 54.9% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.