So I just realized Kassadin isn't a fighter anymore

His kit is true to who he is (an assassin) but he isn't a fighter. You can't just build Kassadin with just AP and MP anymore. Why? Because he is too puny. Why is that? Because Riot nerfed the guy. He has no sustain anymore. His Q deals less damage and has no silence. His W doesn't give a bonus for a few seconds and work on turrets but does give back a small amount of mana. His W... really needs to be 1.2 seconds Riot but at least it does damage. And his R is built by his MP (his mana). So, he isn't a fighter anymore? So, what is he now?

Well, the only way to make him sustainable is for him to get armor, magic resist, MP, and HP. (But those are things that I get for a tank... wait.) Yes, Kassadin was inadvertently changed into a tank. So, Kassadin can't be played the same anymore. (What, that doesn't make sense. He was made for mid lane.) Has he been doing well mid? Can he compete with any of the other mid laners? (Yes...) What are his stats? (Well, they seem to be around in the 40 percentage but common, he use to be so strong mid.) Yeah, and Riot nerfed him and gave him a different passives and a new ability. So, what would happen if Kassadin went top? I mean, he is a assassin but now he is also part tank. So if I were to use his kit in top lane... His Q might be a good spam against enemies... His W allows for good sustain for his abilities... His W could get annoying... That R isn't magic so it deals true damage... and items don't give much magic resist like they use to...... NOOOO!!! With that mobility, he might be a good Assassin/Tank!

Assassin/Fighter Tank