Hello! and Welcome!
if you are reading this then you are more than likely to automatically succeed using this build frankly for the fact of not everything is through just items and ability order. Though majoring up a huge part of it there is finer details which will put you between a good and great Fiora. This is my first guide but defiantly not my first game of league. Starting in when it came out in beta. This is my person Favorite build to run and is hard to stop once you get going. So lets continue on shall we!

P.S. Try it first before you bash it!

PROS
[*] Bursty
[*] Great mobility (when attacking)
[*] Hard to get away from
[*] One of the best Auto Attack counters in the game (Riposte)
[*] Crazy good alt
[*] Decent jungler
[*] Impossible to 1v1 with melee

CONS
[*] Very easily CC-ed the boots are a must get
[*] Lacks an escape
[*] Focused quickly

The masteries I run for Fiora are very common melee masteries more focused on the armor-side verus magic-resist side for the reasons of 1v1ing most melee. This can be changed around if need for more magic resist however quite trivial.

What I would use!
Cleanse Ignite

Not your style? fair enough these work as well
Ghost Ignite
Flash Ignite
Exhaust Ignite

is a must for almost all sitations of finishing off a champion just right out of melee range. Works extremely effective and will secure many kills. Now why would i suggest ?? well, it is frankly a amazing summoner spell to counter that exact thing. , . Poof, gone. Now that kill they thought they could just walk off and get is literally walking off without dying and you will have people STUMPED on how you didnt die.

If you are lacking some escape thats the only reason i would suggest or , just mainly for the fact is Fiora as alot of chasing abilities i would never suggest to in when you could just simple Lunge in. Flash will be your wall breakers which is effective unless their team uses it too. IMO has longer term escapability for the simple fact is it lasts alot longer.

The reason i say to go boots/pots first mainly for that quick kill early game that they cannot escape you on. Fiora fed early will quickly tumble into a GG by 20 minutes. I myself am good at last hitting and a kill here and there but not much is needed for the B.F sword. So it is defiantly a good second item pick because it adds ALOT more damage early game further securing kills and helping last hit minions easier with the more damage. After that i would get a dagger which corelates into the second half of the black cleaver. Finish my boots and then the cleaver. It is imparitive that you do it in that order because by the time you finish your boots the other team will more than likely have a CC-ing ability which can hender you from some kills or even kill you and the extra moment further allows you to stay on top of people. After the Black Cleaver you want to get a vampric scepter and LEAVE IT and immediately get the B.F. sword and finish a infinity edge. The only reason you leave the sceptor is because it gives the perfect amount of sustainabilty and survivability allowing you to jungle and get that red and not come out with no health. After the infinite edge then you just finish the Blood thirster followed by Bloodrazer and finally the trinity. The bloodrazer is mainly utilizing the max attackspeed you get and dealing with those trouble tanks. the trinity is a good box wrapped into a single item, movement speed, attack speed, crit and not to speak a beast sheen effect this is a must but can be changed for more defensive items if needed.

Early on you should pick up a point quickly in Riposte and get to your lane. The basic mechanics of it is that it will negate a Auto attack from Champions, Large monsters and the cannon minions and do damage back to them. The damage is decent but really the HUGE part about that ability is the negation of a Auto Attack could be easily life and death. This is a must to max first followed by Burst of speed and you ultimate whenever you can. Get a point in lunge at 4 but other than that max it last. It is really only good for jumping to your target and some damage later game when you get items. If you are in a sticky situation where you are stun locked away from a kill and rolling cleanse like you should be! cleanse out and ult. it takes you out of being able ot be targeted doing massive damage to anyone near by allowing to finish 1 v 1's unscarthed or 5 v 1's.

This is the wrapping up of my guide i will add ot it like how to jungle and such if someone would like to roll her jungle. If someone would tell me how to add the pictures of items in that would most certainly spice up this guide. Thank you comment and rate! Will finish more in the morning

When a patch comes out that changes her in any way it will be posted here and the best way to take advantage of it.