Not Updated For Current Season
This guide has not yet been updated for the current season. Please keep this in mind while reading. You can see the most recently updated guides on the browse guides page
x
x

Did this guide help you? If so please give them a vote or leave a comment.
You can even win prizes by doing so!
Vote
Comment
I liked this Guide

I didn't like this Guide




Your votes and comments encourage our guide authors to continue
creating helpful guides for the League of Legends community.
Choose Champion Build:
-
Midlane Karthus
-
Toplane Karthus
Recommended Items
Runes:
Sorcery
Precision
Spells:
Flash
Exhaust
Items
Ability Order
Death Defied (PASSIVE)
Karthus Passive Ability
Threats & Synergies
Extreme
Major
Even
Minor
Tiny
None
Low
Ok
Strong
Ideal
Katarina
Ideal
Strong
Ok
Low
None
Introduction

I'm Wengster a 22 years old streamer from Germany. League has been a part of my life since early Season 1. I started playing competitive as a midlaner in Season 2 and have been playing in the German scene EPS (now called ESL Meisterschaft) with multiple teams.
My accounts are usually Diamond 1 or Master since S3, while peaking Challenger in multiple seasons. I started to play

While I am streaming in German you can still ask me EVERYTHING you wanna know about

This is my first month of making guides, so feel free to give me feedback in the comments!
I'll update this guide with every patch. I will probably make one for each of my other champions that I played over 300 games, if there is enough interest.
Here are the other guides i made so far:
You can follow or even sub to me on twitch if you like what I do!
Karthus actually has one of the highest winrates in Top and Midlane!
Pros:
|
Cons:
|
and |
![]() ![]() |
![]() ![]() |
![]() ![]() ![]() |
Every 20 seconds your next ability that hits an enemy Champion will proc ![]() Average game times are very short which makes this more appealing than ![]() |
![]() ![]() ![]() |
![]() ![]() ![]() |
![]() |
|
![]() |
|
![]() |
|
![]() |
Death Defied |
Upon taking fatal damage,

If


- Always try to keep dealing damage to your enemies after dying and going into
Death Defied.
- If you want to cast your
Requiem after dying, keep in mind that the you need the whole 3 seconds channeling time. If you have less than 3 seconds remaining in
Death Defied, you can't activate your
Requiem
![]() |
Lay Waste |
Range: Cooldown: Mana cost: |
875 1 20 / 26 / 32 / 38 / 44 |
After a 0.5 second delay

- This is your main farming spell. Low mana cost and low cooldown allow you to spam it a lot.
- You don't get minionaggro when hitting an enemy Champion, even if it hits no other target, which makes
Lay Waste a perfect tool to poke your enemy in lane without taking damage.
Lay Waste can surprise with a lot of burst if you only hit one enemy Champion!
![]() |
Wall of Pain |
Range: Cooldown: Mana cost: |
1000 18 100 |

- You can use
Wall of Pain as an offensive tool to catch people or as a defensive tool to slow enemies while running away.
- Keep in mind that shredding magic resistance will also increase your damage.
- Combining
Wall of Pain with
Lay Waste can make for easy hits while increasing your damage.
![]() |
Defile |
Effect Radius: Mana cost per second: |
425 30 / 42 / 54 / 66 / 78 |
Toggle OFF:

Toggle ON:

- Keep in mind that you won't restore mana from
Defile if it's toggled OFF even when you are killing units with your other abilities or autoattacks.
- You can toggle ON and immediately OFF to get a lasthit that you wouldn't normally get while not wasting too much mana.
- Stasis from
Stopwatch and
Zhonya's Hourglass will neither interrupt your
Defile, nor toggle it OFF! Be sure to have
Defile toggled ON before you use them.
![]() |
Requiem |
Range: Cooldown: Mana cost: |
Global 200 / 180 / 160 150 / 175 / 200 |



- Using
Requiem can give you free kills across the map.
- Go to a position where you can't easily get killed or interrupted before starting your channel.
- Sometimes using
Requiem just to support your teammates with extra damage can carry the game. You don't always have to lasthit Champions with it!
Requiem can deal around 1200 damage to all enemy Champions in lategame, which makes this one of the best abilities in the game.
In Lane Try to hit your ![]() ![]() A lot of ![]() ![]() ![]() ![]() Do not push your lane while you have no vision of the enemy jungler! Stay safe and don't go for risky positioning. If you are toplane you have to be even more careful about not pushing your lane. Most melee toplane Champions have some kind of gapcloser combined with ![]() Focus on harassing your opponent with ![]() Some toplaners can kill you easily if you get too close. ![]() ![]() ![]() ![]() ![]() ![]() After getting level 6 and access to ![]() ![]() In Midgame Midgame as ![]() ![]() Try to get solo experience and farm on sidelanes. Be sure to grab extra jungle camps that your jungler isn't taking and are close to your lane like ![]() ![]() Your ![]() ![]() If the enemies in the front are scary opponents that will deal enough damage so you or your teammates are in risk of dying if they get close, make sure to use your ![]() If they are not, use your ![]() If you have an opportunity to flank the enemy team and you get into their backline, it's often right to deal as much damage as you can, while going as close to their carries as you can. Giving up your life and using ![]() ![]() ![]() ![]() If you try to focus down a tank make sure to use ![]() ![]() In Lategame Basically, same as in Midgame. But this time ![]() Even if you die without dealing any damage, casting your ![]() ![]() ![]() In General If you are fighting and you are close to no mana while you still have a lot of health, make sure to toggle ![]() ![]() If you survive a fight and are low health while your ![]() ![]() Use the matchups tips to determine how aggressive you should play! Also check the notes in item build path at the beginning of the guide! |
![]() ![]() ![]() |
Most of
Karthus matchups behave in the same manner.
You can see the matchup color at the beginning of the guide!
![]() ![]() |
GREEN: You can freely harass them with ![]() In toplane you are free to use ![]() ![]() ![]() ![]() YELLOW:Only go for harass with ![]() ![]() ![]() ![]() ![]() ![]() If you fell behind against a physical damage threat early game, building ![]() In toplane you can go for ![]() ![]() RED:This lane is about staying safe and farming until you reach your level 6 and get access to ![]() Do not try to fight your opponent if you can avoid it! Give up minion kills if it means you stay safe and healthy. Do not waste ![]() On your first back, always go for one ![]() ![]() Against a magic damage threat make sure that you get a ![]() ![]() ![]() ![]() In toplane always take ![]() |
You must be logged in to comment. Please login or register.