This is my first guide ever so pardon my french and illiteracy toward an in-depth guide with pics and links and all that jazz.

Riven is the latest champion to grace the League. Her skills are meant for close encounters and this is the way you should play her. She is a great chain-disrupt champion with the ability to knock people in the air (1st skill 3-chain) and also stun for 0.5 seconds (2nd skill). Like a lot of AD heroes, her abilities scale with critical strike - most similarly in comparison to Garen's (Judgment) i've found. Her passive stacks dmg up to a maximum of 3 charges each time u cast a spell so timing and keeping these charges up make her a serious threat; it is because of this that not much damage items are needed on her. Her ultimate further adds damage and can deal aoe wave damage to heroes running away.

Pros
1. Broken blade spiritually made whole.
2. Probably the hottest exile around.
3. Fun as hell to play thanks to her chaining.
4. Can start a team fight well.
5. Mobile; can close quarters with 3rd skill.
6. Good early-game bursts.
7. Low cooldowns.
8. 15 sec ultimate makes her a range melee ^^
9. Requires no mana or energy!

Cons
1. No real means to escape CC.
2. Damage lacks toward late-game.
3. Damage scales rather poorly with items.
4. She has a broken blade.
5. Requires a good laning partner.
6. Armor counters her pretty well.
7. Broken wings does not apply on-hit effects.

The runes i have chosen are for early-game sustainability with slight damage output. Swap them around as you like but Riven is played better with defensive and tanky in mind. You can make her a low-cd burst champ or more tanky and sustainable.

I always like dodge runes. Very useful all game long.

Masteries are pretty standard. 8/21/0 - so she can take a good beating and still probably come out alive.

My items are standard tank/dps items that can also dish out some good damage throughout the game. Choose your poison. I'd rather go sunfire first with ghostblade to gank and then finish up depending on how your game is going. Tanky or more dps. Up to you. Not an exact science lol.

You can choose to go 1st 2nd 3rd but if you are laning with a good partner you might not need the 3rd skill to go in or away when engaging your opponent. 1st skill can dish out quite an amount of damage and is a great tool for farming creeps.

Broken wings is your bread and butter skill but i kinda felt maxing Valor second was better than Ki Burst. Of course if you rather take a more offensive route then by all means go Ki Burst second but the stun stays at 0.5 secs.

Exhaust and heal. Pretty self-explanatory. You're going to be playing Riven somewhat like a Rambo. Going in and out. Chasing down your enemies. Trying to chain the hell out of them.

You could swap heal for something else like Ghost or Flash but i like heal more. Swap the heal mastery out for ghost if you go ghost. Heal can make people over-commit and allow you or your team to land a killing blow.

I will update this build as i go; or as i lrn2writeguides like a boss to make them more appealing to the masses. This is more of a build i like to share with the masses before moving on into an in-depth guide.