Karthus OT LF Jungler duo (gold - low plat)

I want to start playing ranked seriously this season and climb to plat, possibly d5

I tend to play Karthus mid, but can play jungle/bot too. I only play Yi jungle when my team is shit and I have to solo carry.

Obviously, everyone knows Nocturne is a beast with Karthus, but I do well with most junglers.

Let's reduce the RNG and get some consistent wins together.