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

Every few seconds, Galio's next basic attack deals bonus magic damage in an area.

Galio fires two windblasts that converge into a large tornado that deals damage over time.

Galio charges a defensive stance, moving slowly. Upon releasing the charge, Galio will taunt and damage nearby enemies.

Galio will briefly step back and charge, knocking up the first enemy champion he encounters.

Galio designates an ally's position as his landing spot, granting all allies in the area a magic shield. After a delay Galio smashes down location, knocking up nearby enemies.
E Justice Punch
R Hero's EntranceTaunttenacity helpsFROM
W Shield of DurandSlowignores tenacityFROM
W Shield of DurandHover 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
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching

Based on 4709 games · 50.6% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 1044 games · 50% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm

Based on 471 games · 49.5% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
Sorcery
Summon Aery
Arcane Comet
Deathfire Touch
Axiom Arcanist
Manaflow Band
Nimbus Cloak
Transcendence
Celerity
Absolute Focus
Scorch
Waterwalking
Gathering Storm
Precision
Press the Attack
Lethal Tempo
Fleet Footwork
Conqueror
Absorb Life
Triumph
Presence of Mind
Legend: Alacrity
Legend: Haste
Legend: Bloodline
Coup de Grace
Cut Down
Last Stand

Based on 42 games · 26.2% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.