Abilities of Ambessa
Spell skill priority is an important winning factor for Ambessa. Understanding the abilities of Ambessa in League of Legends is another. Below you can find all the relevant information on Ambessa abilities. In order for item builds you should check the build for Ambessa.
Passive: Drakehound's Step
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.
Cunning Sweep / Sundering Slam
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.
Cunning Sweep: Ambessa sweeps her blades forward, dealing calc_damage_1_max + calc_damage_1_percent_max max Health physical damage to enemies at the edge of the strike. All other enemies take calc_damage_1_min_ratio damage. Striking an enemy readies a Sundering Slam.
Sundering Slam: Ambessa slams her blades down, dealing calc_damage_2_max + calc_damage_2_percent_max max Health physical damage against the first enemy hit. All other enemies take calc_damage_2_min_ratio damage.
Repudiation
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 gains calc_shield Shield for shield_duration seconds and braces herself for buff_duration seconds. She then slams the ground, dealing calc_damage_low physical damage to nearby enemies, which increases to calc_damage_high physical damage if she braced herself from damage from an enemy champion, large monster, or structure.
Lacerate
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 whips her chains around, dealing calc_damage_flat physical damage and Slowing enemies by slow_amount*100%, which decays over slow_duration second. Initiating Drakehound's Step from this Ability will trigger an additional strike.
Public Execution
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.
Passive: Ambessa gains armor_penetration*100% %i:scaleAPen% Armor Penetrationcalc_omnivamp of the damage she dealt.
Active: Ambessa becomes suppress_duration seconds and then slamming them into the ground, dealing calc_damage physical damage and Stunning them for stun_duration seconds.
FAQ on Ambessa
What do you max first on Ambessa?
Most Ambessa pros max out 
Cunning Sweep / Sundering Slam first.