Before my guide starts, please DO NOT downvote my guide just because you own other Talon guide. Also don't downvote just because you found some little grammar mistake (I'm not native speaker but I think it's still readable) or one of items doesn't fit for you.

If I forgot anything important or overlooked something, leave me comment down bellow. Any helpful comment will be awarded with +Rep

Mercy
Passive-Deal 10% damage with basic attacks when target is slowed, stunned, immobilized, or supressed.


Noxian Diplomacy
Q Skill-Next basic attack deals additional physical damage(including turrets), resets autoattack timer, and if champion hit will then bleed and reveal.


Rake
W Skill-Slows all targets hit, damages twice, and great farming skill.


Cutthroat
E Skill-Instantly teleport behind target, silences target, and deal increased damage to target for 3 seconds.


Shadow Assault
Ultimate-AOE damage, then stealths you, and then upon exiting stealth on command or after 2.5sec will cause ring of blades to comeback causing damage to all targets inside it.

Durability
Pro's
-Great harraser
-Good chaser
-Excellent burst damage
-Good escaper

Sunder
Con's
-Focused in teamfights
-Squishy
-Tanks can be a problem

Greater Mark of Attack Damage x9 for some early game damage.
Greater Seal of Armor x9 for more survive abilitie.
Greater Glyph of Warding x9 for magic resist (if you are going mid or top)
Greater Quintessence of Attack Damage x3 more damage early and late game.

First I like to start off with just Boots and Health Potion x3 or if you want Doran's Blade.
Hopefully things are going smoothly enough and when you go back you can get The Brutalizer and Vampiric Scepter.
Now your next time back if you haven't gotten Vampiric Scepter and make your Boots into Ionian Boots of Lucidity.Now start building Bloodthirster out of that Vampiric Scepter.
If you die or go back grab Sheen or Trinity Force.
Now start building Trinity Force out of that Sheen.
Finish The Brutalizer into Youmuu's Ghostblade.
Next you'll want to get B. F. Sword and want to make that into Infinity Edge.
Finish the build by making a Phantom Dancer

Youmuu's Ghostblade Ionian Boots of Lucidity Bloodthirster

I typically grab Ignite and Flash, which both are great for chasing and/or escaping.

Other good spells you could grab are:
Ghost If you dont want flash, this is another good chase/escape summoner ability.
Teleport For when you feel you might do a bit backdooring or help you towards the beginning of the game so you dont miss out on much exp/gold.
Cleanse This is good to get all those CC effects off you to help you get kill or runaway from someone.
Heal and Clarity are okay but not all the needed.

Some spells you should not grab are:
Smite Talon ain't too much of a jungler.
Clairvoyance Leave this to the supports.
Revive Only if you want to troll.

This is where you will want to not jump in until the fight begins and you can get into range with Cutthroat with casting Noxian Diplomacy right before and focus down the other teams carry or caster, and then cast Shadow Assault which will hurt just about the whole team and right before your stealth ends try to hit the other team with Rake causing a big burst of damage from the second half of Shadow Assault and both hits from Rake, also causing you to slow the other team allowing your team to either chase or run, depending on the situation.

Talon is a great with farming because of his Rake and Shadow Assault. Early game try to just farm minion waves with just Rake and you should be able to hit the whole wave with this skill. Later on the game you'll be able to easily clear minion waves with a single hit with Rake and those large minion waves with Shadow Assault, which is on a very short cooldown with this build.

Hope my first guide was good enough to help a few people and hope for some feedback good and bad. And you don't have to follow this build exactly if you don't want to and can be a bit creative, just my opinions on how to build Talon.

Dont forget to +Rep me if i helped