
Assassin · physical (AD) damage
Ambessa is a Assassin that deals physical (AD) damage and brings suppression, stun, slow. Some of their lockdown (suppression) ignores tenacity, so you dodge it; you can't cleanse or Merc' through it. Below is Ambessa's highest-win-rate build from high-elo games; open the counter-build tool to tune it against your specific enemy team.
Entering an attack or movement command while casting an ability will cause Ambessa to dash a short distance once the ability is cast, granting her next attack bonus range, damage, and attack speed, and refunding energy.

Ambessa sweeps her twin drakehounds in a semicircle in front of her, dealing bonus damage to enemies hit by the blades. Striking an enemy will transform the next cast of this ability for a short period of time, causing her to slam her twin drakehounds down in a line in front of her, dealing bonus damage to the first enemy hit.

Ambessa gains a shield, briefly braces herself, and then slams the ground to damage nearby enemies. If she blocked any non-minion damage while bracing herself, this ability will deal increased damage.

Ambessa whips her twin drakehounds around herself, damaging and slowing nearby enemies. Initiating Drakehound's Step from this ability causes her to strike a second time at the end of its dash.

Ambessa blinks to the farthest enemy champion in a line of her choosing and suppresses them upon her arrival. She then slams the enemy into the ground where they take damage and are stunned.
R Public ExecutionStuntenacity helpsFROM
R Public ExecutionSlowignores tenacityFROM
E LacerateHover a crowd-control type to see which ability it comes from.
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching
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 6424 games · 48.5% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
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
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 2202 games · 47.6% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.
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
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching

Based on 654 games · 48.5% 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
Resolve
Grasp of the Undying
Aftershock
Guardian
Demolish
Font of Life
Shield Bash
Conditioning
Second Wind
Bone Plating
Overgrowth
Revitalize
Unflinching

Based on 43 games · 37.2% win rate · challenger+grandmaster+master+emerald-diamond+platinum-emerald · patch 16.18.1.