First piece of advice: Don't sell your boots. The mobility and magic pen really helps.
If you're getting focused down a lot, consider Banshee's Veil, Abyssal Scepter, or Frozen Heart to help you stay alive, based on what type of damage the enemy team is packing.
If you're getting focused down a lot, consider Banshee's Veil, Abyssal Scepter, or Frozen Heart to help you stay alive, based on what type of damage the enemy team is packing.





While I haven't played Karthus, this is how I would build him:
Doran's Ring OR
Meki Pendant+2
Health Potions
Tear of the Goddess
Boots-->
Sorcerer's Shoes
Mejai's Soulstealer (If you really like the item, this is the time to get it)
Rabadon's Deathcap
Archangel's Staff
That's the core, really. Sorcerer's Shoes+Rabadon's+Archangel's Staff. There are a few different ways to go now.
If you want to go straight-up suicide bomber, kill everyone at the cost of your own death Karthus, your build should be:
Sorcerer's Shoes
Rabadon's Deathcap
Archangel's Staff
Void Staff/
Abyssal Mask
Archangel's Staff
Archangel's Staff
Archangel's Staff (Sell your boots. ONLY do this if you bought Void Staff.)
Basically you focus on getting as much ability power as possible. However, the way I would prefer is a Karthus that can actually survive a team fight while also having great damage.
Sorcerer's Shoes
Rabadon's Deathcap
Archangel's Staff
Abyssal Mask
Zhonya's Hourglass
Banshee's Veil
As for Glyphs, I recommend one of the four, listed in order of preference:
Greater Glyph of Cooldown Reduction
Greater Glyph of Scaling Cooldown Reduction
Greater Glyph of Scaling Ability Power
Greater Glyph of Ability Power
Hope I helped.









That's the core, really. Sorcerer's Shoes+Rabadon's+Archangel's Staff. There are a few different ways to go now.
If you want to go straight-up suicide bomber, kill everyone at the cost of your own death Karthus, your build should be:








Basically you focus on getting as much ability power as possible. However, the way I would prefer is a Karthus that can actually survive a team fight while also having great damage.






As for Glyphs, I recommend one of the four, listed in order of preference:




Hope I helped.





As an expirienced Karthus player i suggest
QEQWQRQEQEREEWWRWW
R->Q->E->W Prio build.
Tear->Sorc Boots->Archangel->Rabadon->Archangel->Void Staff->Archangel->Lichbane(after selling boots).
Dont take Soulstealer since you will not be able to die. And sometimes dieing as Karthus is essecial to teamfights. You shouldnt be afraid of dieing.
I take Clarity/Flash (or ghost instead of flash)
I play with
Mpen/Ap-lvl/AP-lvl/FlatAP runes on him.
M/S/G/Q
QEQWQRQEQEREEWWRWW
R->Q->E->W Prio build.
Tear->Sorc Boots->Archangel->Rabadon->Archangel->Void Staff->Archangel->Lichbane(after selling boots).
Dont take Soulstealer since you will not be able to die. And sometimes dieing as Karthus is essecial to teamfights. You shouldnt be afraid of dieing.
I take Clarity/Flash (or ghost instead of flash)
I play with
Mpen/Ap-lvl/AP-lvl/FlatAP runes on him.
M/S/G/Q
pretty often Freki.
Making Karthus fed from creep kills is extremaly easy. You ignore teamfights since 1/2 of the enemy hp is taken by your ulti anyway. So you roam the map and kill creeps getting more and more AP.
Usualy in games of 35min (standard imho) i usualy have Boots/Arch/Rabadon/Arch/Void.
On games of 45min i already have full build and in and from 45miin+ i am completing LB.
Making Karthus fed from creep kills is extremaly easy. You ignore teamfights since 1/2 of the enemy hp is taken by your ulti anyway. So you roam the map and kill creeps getting more and more AP.
Usualy in games of 35min (standard imho) i usualy have Boots/Arch/Rabadon/Arch/Void.
On games of 45min i already have full build and in and from 45miin+ i am completing LB.
thx for the build above ima try them also how do i add in the items to the site...oh well
since my last post i've been doin blue saphire->tear of the goddess -> majai->sorceror's boots -> will of the anciants-> arcgabgel staff->deathcap->voidstaff-> than someimes sell arch angel or boots to stack death cap usually i can take on all three killing them all and ocasionally living usually if they stay and i dont get turret love lol oh and the reason i get majai first is cuz i usually make alot of kills in begining and it's really cheap so it werks out sometimes also if it isnt werking out like i dont have enough soul engourgments i sell it for something srtonger usually if game lasts a while i get around 1200 ap
and i kinda rely on the spell vamp to survive but i am really squishy so if i get stunned or silend=ced i can die pretty fast but it's funny wen the red dot of death take out a quarter of thier health
since my last post i've been doin blue saphire->tear of the goddess -> majai->sorceror's boots -> will of the anciants-> arcgabgel staff->deathcap->voidstaff-> than someimes sell arch angel or boots to stack death cap usually i can take on all three killing them all and ocasionally living usually if they stay and i dont get turret love lol oh and the reason i get majai first is cuz i usually make alot of kills in begining and it's really cheap so it werks out sometimes also if it isnt werking out like i dont have enough soul engourgments i sell it for something srtonger usually if game lasts a while i get around 1200 ap
and i kinda rely on the spell vamp to survive but i am really squishy so if i get stunned or silend=ced i can die pretty fast but it's funny wen the red dot of death take out a quarter of thier health
DEWO wrote:
As an expirienced Karthus player i suggest
QEQWQRQEQEREEWWRWW
R->Q->E->W Prio build.
Tear->Sorc Boots->Archangel->Rabadon->Archangel->Void Staff->Archangel->Lichbane(after selling boots).
Dont take Soulstealer since you will not be able to die. And sometimes dieing as Karthus is essecial to teamfights. You shouldnt be afraid of dieing.
I take Clarity/Flash (or ghost instead of flash)
I play with
Mpen/Ap-lvl/AP-lvl/FlatAP runes on him.
M/S/G/Q
gunna try this build as well ditching the soul eater
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