I go the standard 21/0/9 mastery build. I don’t bother grabbing any points in Archaic Knowledge or many points in Sorcery as Riven is a physical damage champion. The rest of the points are distributed in a standard fashion grabbing Havok as the 21 point offensive talent and a point for increased neutral buff duration in the Utility Mastery. This allows for Riven to deal damage and maintain buffs as that is her main role and purpose. You can swap the points around in the Utility tree from 3 in Perseverance to 3 in Good Hands as you don’t benefit from the mana regeneration it provides. But I prefer it for the health regeneration for lane sustainability.
These are the runes I use for Riven. I use Armor Penetration Marks to help deal true damage by reducing the armor they have for mitigation. Armor Seals for some defense stats and mitigation. Magic Resist Glyphs to help lower the damage I take from casters, which are like must have runes for melee since you have to close the cap against ranged damage dealers. I take Physical Damage Quintessences to help with Riven’s early game and for last hitting, but another alternative that I use every now and then is Armor Penetration Quintessences for more armor reduction. These are all standard bruiser runes typically and I use the same runes for Riven because she is in a sense a hybrid of a bruiser and a melee assassin for damage and survivability.
The summoner spells I choose to use on Riven is flash and exhaust. Exhaust helps for dealing with people who have a lot of burst damage and for anyone that deals heavy quick sustained damage. Therefore allowing you to survive their initial damage output so you can put the hurt in on them instead of dying quickly. The other reason is for the slow as Riven doesn’t have a lot of utility for CC as her only CC is a knock back that is miniscule and a .5 second stun. Which quite frankly is very long for dealing damage as you are not a nuker. This allows you to deal at least some damage to anyone that is running away when you don’t have access to Lizard Buff. Flash is useful as it adds to your already amazing mobility, but is good for aiding you in escaping and counter flashing those opponents with flash.
Some other alternatives are Teleport instead of exhaust and Ghost instead of Flash.
Skill Order 1-6:
W>E>Q>R (mobility route)
W>Q>E>R (burst/damage route)
Start off with a Doran’s Blade if you know you don’t really much lane sustain otherwise grab Boots and 3x Health Potions. On your first return you should buy another Doran’s Blade, but don’t get anymore then two in your inventory. If things are going really well then grab a phage instead, otherwise grab it later. Afterwards start saving up for a BF Sword and turn that in to a Bloodthirster and try to finish off Frozen Mallet. For Boots you should transition them to Mercury Treads or Ninja Tabi depending on the group. As the game progresses further into the late game, you should build Atmas Impaler and Last Whisper. Guardian Angel is usually your last item unless you need more mitigation and that extra life.
Riven’s early game laning phase is fairly strong. Riven’s passive Runic Blade and her Q ability Broken Wings synchronize very well together for early game burst damage. This holds mainly true as your Q deals bonus damage on top of proccing your passive for increased auto attack damage. Many opponents do not expect that kind of damage, so early on at level 1 if they opponent doesn’t have any sustain it is wise to confront them. However, do this wisely against foes with health potions when trading damage. The main reason for this is because they have health potions for staying in the lane while you do not unless you started off with boots. However, if you start off with boots then your damage potential at level 1 is reduced a fair amount. The main points for laning as Riven is to farm and farm as much as possible and allowed while trading minimal damage in skirmishes. The main way this is achieved is by using Valor to initiate followed by Ki Burst for reducing damage by stunning the opponent. Not only that but you will deal a fair amount of burst damage followed by escaping with Broken Wings while dealing some possible damage with that ability as well. When Riven hits 6 you may be able to get a kill fairly easily, same could be said pre 6 if you have enough damage to kill the opponent without dying. Riven’s ultimate allows you to get kills easily as it is essentially a ranged execute spell. Be sure to initiate the skirmish with your ultimate as it provides a hefty amount of attack damage.
Riven can lane in a duo lane but Riven is more of a solo lane champion. Riven is great in 1v1 skirmishes but is a little lack luster in teamfights so be aware of what your team composition is as well when picking Riven as her utility for teamfights is not really present as much as other champions. Also be aware of your position whether in laning or teamfights as you are a melee champion and can still be destroyed even with proper resistances and health.