NOTICE: This build is obviously focused on the fun parts of LOL over actually trying to climb to high ranks, although in my opinion it is actually a decent build.

I swear it actually works. This build requires using kled's amazing early game (especially his level one) to secure an early lead in lane, and using that lead to snowball into an unstoppable force capable of diving head-on into any enemy on the rift and securing a kill.

I like to play this build in the mid-lane because I find that more squishy champs who are vulnerable to early kills are found there, but it can also be played top if needed.

Downsides
I will say that it can be kind of hit-or-miss, I found that I was either going 30/0 or 0/30. You also do very badly into ranged, AP-focused champs such as Ahri, which is obviously not the best seeing as champions like that are often played in the mid-lane. But I will say that a relative level of risk is normal for most "glass cannon" builds.

Advice
If I had any advice for trying to play this build, it would be to always, even if at very low health, take fights. Kled's passive coupled with the insane lifesteal/onmivamp you get from this build allows you to do from single digit to maximum health in a very short amount of time. This means that in most scenarios, your chances of survival are actually higher if you put yourself into Kled's mindset and stick in fights, rather than trying to escape. However, if you do find yourself in an unwinnable situation, you can always use the backward boost from your unmounted q to escape over thin walls anyway.