Win Rate 55.0% based on 962 matches
Import this build directly into your game client:
Little Mandiocaa OTP80.0%
Laurel Hell OTP50.0%
Starter ItemsTime Target
@ 12 sec
@ 5 min
@ 18 min
Karthus Matchups Overview
Karthus General information
Farm with Q in the early game to make it easier for your to pick up CS.
Deactivate your Defile E once the skirmish has finished as it will eat through your mana bar.
Keep an eye on the minimap at all times and use your R to pick up kills on low health.
Every combo you need to master the champion!
If you want to use the most popular Karthus Bot build, you should take Exhaust and Flash as your Summoner Spells. For runes, you should pick Dark Harvest as your keystone, followed by Cheap Shot, Eyeball Collection and Ultimate Hunter in the primary tree, as well as Presence of Mind and Last Stand in the secondary tree. For rune shards, you want Adaptive Force in offense, Adaptive Force in flex and Health Scaling in defense, though it depends on the matchup. Finally, for your items, you should build Malignance as your first item, followed by Sorcerer's Shoes and Liandry's Torment. For your last 3 items, you should build Shadowflame, Rabadon's Deathcap and finish with Void Staff. For the skill order, you want to stick with Q - E - W. Right now, this build has 55.0% winrate over 962 matches played.
Your second option for Karthus Bot build would be to take Exhaust and Flash as your Summoner Spells. The runes that this build takes advantage of are Dark Harvest as your keystone, Cheap Shot, Eyeball Collection and Ultimate Hunter in the primary tree, and Presence of Mind with Last Stand in the secondary tree. The shards used in this build are Adaptive Force in offense, Adaptive Force in flex and Health Scaling in defense. The items for the build are Liandry's Torment, which you should build first, followed by Sorcerer's Shoes as your second item and Malignance as your third item. The rest of the items in order are Rabadon's Deathcap, Void Staff and Shadowflame. The skill order for this build is Q - E - W. In the current patch, this build has a 54.4% win rate over 384 matches.
If you're looking for alternatives, you can use Exhaust and Flash as your Summoner Spells, with runes being Summon Aery as your keystone, Manaflow Band, Absolute Focus and Scorch in the primary tree, and Presence of Mind with Last Stand in the secondary tree, as well as Adaptive Force, Adaptive Force, and Health Scaling as your rune shards. The items that this build incorporates are Liandry's Torment as your first item, then Sorcerer's Shoes as a second item and Shadowflame as a third item. You want to finish the build with Riftmaker, Rabadon's Deathcap and Void Staff. As far as ability max order goes, you want to keep it Q - E - W. This build is currently sitting at a 52.9% win rate across 87 matches played.
If you want to try an Off-Meta Karthus Bot build in the current patch, try Exhaust and Flash as your Summoner Spells, First Strike, Magical Footwear, Future's Market and Cosmic Insight as your primary rune tree, and Eyeball Collection with Ultimate Hunter as your secondary tree. Use Adaptive Force, Adaptive Force and Health Scaling as your shards. For items in this build, you want to complete Malignance as your first item, then finish Sorcerer's Shoes as your second item, and Liandry's Torment as third item. The last 3 options are Rabadon's Deathcap, Void Staff and Shadowflame. The ability order for this build is Q - E - W. As of the current patch, this build has a 54.7% win rate over 64 matches played.
Situational Karthus Runes and Items
Depending on the context of your game, your matchup, and enemy champions, you might want to consider building some situational items or take specific runes. Carefully examine your team, enemy team, game state , and your matchup to plan your Karthus build accordingly! For example, when it comes to rune shards, you might want to take either Armor or Magic Resist, depending on which champion you are about to lane against.
Furthermore, if you want a more detailed breakdown, you should also check out Karthus runes page.
Check out the latest and best Karthus Probuilds used by pros from around the world, featured by lolvvv.
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In-depth Build Stats
Dive into even more Karthus builds stats with additional analysis from our friends at LoLalytics.