Hi there! My name is Nyarläthotep and I play on oce!

I'm not very good mechanically but I enjoy Karthus and wanted to share my thoughts and idea's on builds for him.

I love to play Karthus because of his passive (deadbois for life), Q (hope you didn't wanna stand in that bush by yourself to recall) and his ult (Oh whats that? You thought you survived my toplaners all-in? Nice joke).

Pro- Global, hit every enemy ult that does some dirty damage late game and can help you snowball early, as well as give some presence in other lanes.

Con- Everyone will survive your ult on 3hp or with Zhonya's until you can do 800 damage with it because you got a big back and everyone is like "oh damn"

Pro- Lot's of fun

Con- 0 mobility

Pro- W (wall) Slows and Reduces MR from enemies who pass through

Con- Good luck killing anything with an auto (doesn't really matter but its still annoying)

When it comes to counters, unless you are very confident in yourself, I would avoid assassins ( Zed, Akali, Fizz, Katarina). They have a strong early game and when they hit 6, can simply kill you or bully you out over and over.

The following is team mates I enjoy when I play Karthus.

I'd recommend CC heavy teams. Characters like Ornn, Singed and Cho'Gath are some of my favorite top laners to have on my team, because they all have great CC. Ornn has stuns, Singed has slows and Cho'Gath has a knock up and a silence.

For Junglers, Evelynn is a personal favorite of mine, and I feel that they work well together, with Karthus slow and MR reduction, and Evelynn doing Evelynn things, enemies tend to die quite quickly. I quite enjoy Jarvan IV as well, because his ult makes it easy to land Q's, since enemies trapped inside don't have a lot of room to maneuver.

For ADC, it doesn't tend to matter as much. They do their thing while you do yours until its time for teamfights where you both do obscene damage. However, Jhin and Caitlyn both have some CC that makes hitting Q's very easy.

Supports. I love hook supports as Karthus. Pyke, Thresh and Blitzcrank all make me moist. However, Never will I ever say no to a Rakan or Alistar. Really, any support with CC will do.

I am significantly better at saying what you should do as Karthus than I am at doing it, so do as I say, not as I do.

In teamfights, you want to stand at the back and slap people with Q's, and drop your wall (W) in the middle so other AP on your team can do more damage, and the enemy team can't run quite as fast. If you see someone come for you, throw your E out and turn on them. Hell, you could even just have your E out at all times during team fighting. Or, you could do what I do and turn on your E, drop walls and run in the middle of the fight. Will you die more? Yeah, but will you do more damage? Maybe.

When it comes to your ult and team fights, save it till after if there is one or more people getting away low, or if you die in the fight, just pop it. Its a massive chunk of damage that should tip the fight in your teams favor. Either that, or use it before the fight so the entire enemy team is 50-30% hp to make it a complete roll of a fight.

Thanks for reading all! I hope you have found this interesting and informative. I'd really like to thanks my friends (Jalby and Thotimus Prime) for putting up with me while I was trash. Still am trash, just not quite as bad anymore.

Good luck to you, hope this helps you climb!