This is another.The main focus on this build for Varus is to emphasize on his attack speed. His passive will give you extra attack speed, but with the foundation that his build provides going into a team fight will push you to the limit of attack speed and provide for easy killing and gaining back your health. There is a small focus on critical strike, since with so many attacks eventually over half will be critical. We don't focus too much on defense because as long as you have flash and there are minions around you should be able to build health enough to fight off ignite or any damage over time effect.

The reason that I chose to get Flash is because it offers a chance to build my first item quickly. As soon as you have enough gold to build the Recurve Bow and get one or two potions, recall back to base. You then use Teleport to get back into lane and continue farming. Since during early game there usually is no need for Teleport other than to get back quickly. Mid game I use to gank top lane, or to finish off a tower in another lane. Late game it is mostly used so you can backdoor, and take down any turrets that are left. When combined with you attack speed and Berserker's Greaves - Homeguard, you should be able to take a turret or inhibitor rather quickly and then flee to avoid a 1v5, while they recall back to their base.

Being the ADC you are going to get targeted quite a lot during team fights. Flash is needed for you to escape from any cc that the enemy team might try on you. Simply Flash behind whoever your tank is for the game and you should be fine. After all Piercing Arrow has enough range that you should be find being behind team members. Flash can also be used early game to assure kills. You can use a combo of flash plus Piercing Arrow to catch up to almost any enemy champion.

I emphasize Varus attack speed. With his passive Living Vengeance, you gained additional percentage of attack speed upon killing a unit, so we focus on getting a good foundation off of the items so as to increase the percentage obtained from the passive. Start off with Doran's Blade for some damage and life steal but rush Runaan's Hurricane. The first trip back to base should be to buy the Recurve Bow. After you get Runaan's Hurricane, you want to begin to build the Blade of the Ruined King so you can get some damage and life steal as well as speed. The way these two items work well together is that as you are attacking or poking at enemy champs the effect from Runaan's Hurricane is giving lifestyle, therefore increases your sustainability in lane. The next two items are interchangeable, it really depends on how the game is going and what you need most. If you feel like the enemy keeps getting away from you build boots, if not go for the Statikk Shiv. What is nice about the shiv and hurricane together is the effect on both, if an enemy is getting away and they are out of auto attack range, attack the minions nearest to them and more often than not between your two items you should strike the champion. The Statikk Shiv not only brings a mix of damage and speed but it also brings in critical strike which will also be helpful. Your critical strike will not reach real high in you final build but since your attack speed will be so high compared to other champs that evens out, and there are fights where you will land more critical strikes than the opponent add who is building mainly critical. When going for critical strike the Infinity Edge is important because it increases the amount of damage that the critical strike does. The last item Youmuu's Ghostblade is critical before team fights. This item gives you; damage, cooldown, and critical strike. But that is not what makes this item important to Varus. You activate the effect of this item right before you go into a fight and it should boost your attack speed to 2.5, which is the max, then once in the fight as long as there are minions around Runaan's Hurricane and the Statikk Shiv should be more than enough to keep you at the 2.5. From there you don't even need to use abilities. You just recline in your chair and watch as Varus gets a PENTAKILL.

Combos I would do in solo fights would be AA+AA+AA+ +AA+AA+AA+ and by then the enemy should be dead. It sounds crazy that you would be able to attack this many times in a solo fight but considering what Varus's attack speed will be like it is very easily accomplished.