Lane bullying and tank shredding.
Improved attacks and sustained damage
After a few seconds in combat, your first attack against a champion grants bonus AD and convert some of your damage to True Damage.
Takedowns restore health and grant bonus gold.
Takedowns on enemies grant permanent Attack Speed.
Deal 7% more damage to low health champions. Gain AD/AP after kills or assists.
Durability and crowd control
After taking damage from an enemy champion, the next 3 spells or attacks you receive deal less damage.
Gain permanent health when enemy minions or monsters die near you.
+9% Attack Speed
+5 AD or 9 AP
+6 Armor or 8 MR (match-up)
Conqueror on Yasuo allows you to hit for a massive amount in the mid game thanks to the extra bit of Attack Damage (that converts to crit) as well as True Damage.
Triumph's massive mid-fight heal can mean the difference between a successful dive/1v2 and falling flat.
More Attack Speed means more damage output, especially when paired with the extra AD from Conqueror.
Coup De Grace's executioner damage massively amplifies your ability to blow up squishy back-line targets.
Bone Plating's early game damage reduction is great for sustaining lane phase where you might otherwise get harassed obnoxiously.
Overgrowth's bonus health makes you a late-game 1v1 dueling monster.