Genji has one of the best mobility in this Game. That helps him to get behind his Opponents for an easy Backstab. But why Backstab? Genji gets a Talent that lets you Critical Hit with your Quick Melee if you hit an Enemy from behind. So you want to build up on that with Crit + Quick Melee Damage.
Item purchase order
Round 1
Gain 60% Melee Lifesteal and increase [Quick Melee] damage by 15.
1,500 
1,000 
1,000 First Round is pretty simple. Hidden Blade or Hanamura Healing for the first Power depends on your playstyle. Most important in this Build is your survivability. Genji doesnt really need Weapon or Ability Power in this Build so we can focus a bit more on Survivability.
Round 2
1,000 1,000 
[Quick Melee] can critically hit when striking enemies from behind, dealing 50% increased damage.
11,000 Round 2 is where the fun begins. Sell Compensator and Weapon Grease, that should give you enough for Ambusher Optics. That will give you 25% Melee Damage but even more important is that you can Crit your Opponents now. Keep the Armor if you have enough Money, really important because we are always close to the Enemy Team.
Round 3
Critical hits and [Swift Strike] grant Overhealth equal to 25% of their damage dealt for 5s.
[Quick Melee] damage heals for 25 Life.
1,500 
Convert 100 Health into Armor.
4,000 
[Melee] Damage grants 10% Move Speed and restores 5% of Max Life over 2s.
10,000 
Eliminations grant 10% Attack Speed and 15% Move Speed for 3s.
1,500 Round 3! Hanamura Healing or Hidden Blade as the Power. Now comes another really important Item. Gloomgauntlet is an epic Survival Item that gives you even more Quick Melee Damage and Survivability. So that is a must pick, sometimes you just get that and start the Round with your 2 Epics but thats fine! If you dont have enough Money for it sell your Armored Vest. Buy Vital-E-Tee, Frenzy Amplifier or/and Siphon Gloves if you got alot of Money.
Round 4
1,500 [Quick Melee] damage heals for 25 Life.
1,500 1,000 
Critical Hits reveal the target for 3s.
14,500 Round 4 is pretty simple you always want "The Closer" the epic Weapon Item for the Crit damage. It also gives you some Weapon Power which is nice to have for Shuriken/Blade Damage. Sell some of your Common/Rare Items if you cant afford it. If you still cant afford it buy Enduring Edge or Transference Delta depends on your Playstyle.
Round 5
[Swift Strike] deals 35% additional damage over 3s to enemies hit.
1,000 Eliminations grant 10% Attack Speed and 15% Move Speed for 3s.
1,500 
10,000 Round 5! Laceration for our Power. Some extra damage for our Dash that helps us to get behind the Enemy. Should also work with Hanamura Healing im not 100% sure though. For Items sell all your Common Items and buy Enduring Edge for an extended Ultimate and some Weapon Power.
Round 6
10,000 
Deal 10% increased damage to enemies below 30%% Life.
14,000 1,000 Round 6 is a bit tricky! We would get the best powerspike by using "Eye of the Spider" for the 25% Weapon Power and increased Damage against lower Health Opponents. But i also like to use "Codebreaker" if the Enemy Team has alot of Armor! So it depends on the Situation but in this Example we pick the "Eye of the Spider". If you dont have enough Money sell "Enduring Edge"! If you still have Money pick Compensator or something else with Weapon Power too!
Round 7
After [Deflect] ends, quickly swing your [Dragonblade] once.
1,000 10,000 Round 7! Iaido Strike for our last Power! Items: Sell the "Compensator" if you bought it last Round. Buy "Codebreaker" and if you have enough Money sell "Vital-E-Tee" too, so you can buy "Enduring Edge" or "Transference Delta".
Description
I hope you have fun with this Build! Reached up to Pro 1, currently with a 70% winrate on this little green cyber ninja guy.
So for me it works pretty great and i hope it works for you aswell. :)
