First off I want to thank you for taking the time to look at this guide. Now most of you might be thinking, "This guy is a boosted animal! Why would you ever build Kassadin with any ad if he has no ad scaling on any of his abilities?" Well stick around till the end so I can learn you the truth and reason behind this build and why its so strong.

Max W first while in the jungle so you can maximize your mana sustain. Max Q second as it works well as an execute on low enemies. E is maxed last as you rely mostly on your W for damage so all you need is its utility. Obviously, take R whenever possible.

AS quints help early jg clears and AP reds helps you with early ganks Thunderlords is the best mastery as with this build we are trying to 100-0 people.

I almost always start gromp>wolves>blue>scuttle. If you pull this off you will be able to get a full clear before backing. You have to kill scuttle with auto attacks only, however, to maximize your life steal.

Try your best not to gank until 6. Your ult has a large cast range so use it to your advantage to gank from behind. Make sure you get off as many W active autos as you can. Remember you dont have flash so pre 6 ganks are very difficult. If you want to early game gank, do not do it untill you get boots and your blue smite.

In teamfight, you will be tanky enough and have enough damage to jump onto the enemy back line and nuke all their carries. Make sure you kill who you're going for so that you can get the nightfall passive refunded.

Pro:
High damage
High mobility
Not many people can get away from you

Con:
You can be focused easily
If you cannot ult you're screwed

R>E>aa>W>aa>Q>R>W>aa (Or until they die continue as needed)

The whole reason behind building AD is for your W. First of, you max it first anyways to increase your sustain. Second, with this build, when you use it you get the following: sheen proc, base dmg, AD damage, nightfall, and bonus AP damage. Also the auto from this ability can crit so if you get an IE and static shiv and you crit with this build, you can kill squishies with one auto attack. This build plays similarly to full tank veigar. You are tanky but you provide incredibly burst for your team.

This is a good pick against most meta champions right now and is a good counter to bloodrazor junglers such as Yi or Xin Zhao as you can easily snowball the game out of control by taking advantage of your early game strengthl.