Raw damage, snowball, and late game hyper-carry.
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 Lifesteal.
Deal more damage to champions while you are low on health.
Empowered abilities and resource manipulation
Shortly after using your Ultimate, gain a decaying Movement Speed increase that lasts for 3s and allows you to pass through units.
Gain increasing amounts of AD or AP, Adaptive over the course of the game.
+9% Attack Speed
+5 Armor or 6 MR (match-up)
The bonus Attack Damage from Conqueror allows you to 1v1 any champion in an extended fight where you're able to repeatedly proc vitals for even more True Damage.
Close skirmishes will allow you to come out with plenty of health and continue fighting.
The additional life steal from Bloodline pairs extremely well with Fiora's passive and tendency to build lifesteal making your late-game splitting unstoppable.
Last Stand is a fantastic rune choice when it comes to 1v1 dueling and split-pushing, Fiora's forte.
The extra burst of Movement Speed from Nimbus Cloak is massive for enabling your ability to get around the enemy, chase, and proc all of the vitals.
The bonus AD granted from Gathering Storm makes Fiora an unstoppable late-game duelist, able to split pushing and draw pressure like none other.