Hello Summoners, my name is Zeyphel Sevans (Sevz). I have played this game for 2 years with many accounts in differents servers and I main Kassadin as my more trustworthy champ. I just want to teach you what a good champ you have if you decided to pick Kassadin as your main champ. I will let the Pros and Cons below and the utility for Kassadin using this build. I hope you enjoy this Build and be ready to quick many Mids Champs.

+ Late Game Massive Damage (you will be surprised of that damage)
+ Mid Game Great damage

+ With the Build #2 and #3 Kassadin can fight champions which mostly use basic attacks like Jax or Fiora. Those champ are usually a counter to AP champs like Kass, Fizz, etc. But with this build (Nashor's tooth and Hextech Gunblade) you can face them.
+ After level 6 you can start killing enemy champions effectively.
-Not so powerfull early Game. In early game you should focus in farming and surviving which is not so difficult (own experience). It doesn't mean you cannot kill enemy champs early game but i recommend focus on farming because you will be more powerfull in mid and late game and you need to build the Rod of Ages as soon as you can...

Nashor's ToothLichbane

-Why i use Nashor's Tooth instead of Lichbane...
You are kassadin, you are totally reliable of your abilities, when these are in cooldown you are totally exposed to recibe great amount of damage and the worst part... you can't do anything about it because your normal attacks are super slow and do not do almost any damage to enemy champs ¡That is why i buy Lichbane! No, because lichbane depends of your abilities to make damage, you use an ability, then lichbane and you do good damage, of course. But lets see when you have all your abilities in cooldown what will you do? Run waiting for them to be able again... you will recibe damage durante that moment and if you try to autoattack you won't do damage, autoattacker champs will melt you because during that time you do not do any damage to them because they will autoattack you and with lifesteal they will recuperate fast and you can't do anything about it, then they will chase you and if you get stunned you will probably die. I am not saying Lichbane is bad, but Nashor's tooth is a better option. Why? I will put the answer below.

1- There was a full health tower... 5 seconds later it is not there. You melt towers insanely fast. Is that tristana? No, It is Kassadin.

2- Kassadin autoattacks with nashor's tooth are 2 times faster, now you do 3 autoattacks in around a second and a half and Nashor's tooth damage scales with AP, even autoattacker champs cannot stop you. 1AA with LichBane＝2AA with Nashor's Tooth. Difference? Nashor's Tooth allows you to make 3 AA in a second and doesn't have cooldown while LichBane just do 1 AA in a second and has a 1.5s cooldown, that will be other additionals 4AA if you are using Nashor's T...

Not convinced yet? Put your reason or thoughts in the comments and i will explain you with more details.

When you are using Kassadin you need to be Patient... that is essential using this champ and this build. If you face Victor, Yasuo or Zed early game do not try to harass them with your Q early game Because you can run out of mana, be so vulnerable and loose too much cs without talking that everytime you try to harass them you will recive a good amount of damage and you will loose in trades. So what you need to do is focus farming and avoiding their skillshots and when you reach level 7 start harassing them with your Q and E, and if they are stubborns and do not return when they have low hp and you see te opportunity wait until your E is ready, use your R and go all with R+E+W+Q and the kill is yours (always put wards in bush... you do not want enemy jungler ganking you)I recommend only get the Dark Seal when you are confident against the champion you are facing in lane and you know you can beat him easily in lane. After level 7 the enemy champs will be surprised of the damage you do with your Q and they won't believe they loose in trading damage, there is your opportunity. I have faced mastery 7 Yasuo, mastery 7 Victor and Mastery 7 Zed and beated them in lane doing that. Even thinking Kassadin is Anti mages... with the build #2 i can beat AD champs like those before and more. You should be able to deal with Talon and another famous Mid Laners like fizz or Leblanc. The dark Seal (Mejai's Soulstealer) is a great object which helps so much if you are in killing spree, it makes you even stronger.

Fixed!!!