MYTH: Kassadin is a late game hypercarry
I've been fed on Kass so many times and yet a Viktor, Cass, Ori, Syndra etc. does way more to win/control teamfights while also having safer waveclear/laning.
Kassadin doesn't scale badly but his damage is pathetic so unless your team has others to DPS and you can just disrupt the backline or peel, he's weak. I think people remember back when Kass had an 80% AP ratio on R and a longer range. He was definitely a hypercarry then but he only has a 20% base AP ratio and a small mana ratio. Right now, he's a snowball and cleanup champion, not a true carry.
The reason I'm making this thread is because I was misled with the whole "lategame Kassadin" hype and yet I've been full build many times with RoA LB Sorcs VS Rabadon's & Zhonya's only to find other champs doing infinitely more damage and over a larger area. If your team needs damage, you'd definitely not want to pick Kassadin. If you have a Jinx ADC, Amumu JG and Darius Top, go for it. On the other hand, if it's Shen top, Ivern JG and Ezreal ADC, you're going to be doing way too little late game.
I know you guys will downvote and say I'm wrong but prove it to me. Show me games where a Kass on equal gold is actually outcarrying a Viktor, Annie or Brand late game for example. I just don't see it. I know he USED to be that champion but he's just not now. His roaming is good though and he snowballs very well. Although, there are many roaming champions who do it a little better due to being able to waveclear quickly first. TF and Taliyah come to mind.

/
is actually a pretty good toplane bruiser kass build.
on kass? I find its a fun alternative to
. Rush
, into
. Or if your doing ok, get
right after you build Manamune. Its a fun build due to the fact his Q procs