View build
Karthus
DATA_PENDINGRole DATA_PENDING
DATA_PENDING Evidence: Riot PBE client + modern-ddragon build d74daa4bfa44 checked Jul 20, 2026
Classic loadouts
Builds for Karthus
View build
Base stats
Health
▼465 +75
Health Regen
1.21 +0.11
Resource
331 Mana
Attack Damage
▼45.45 +3.25
Armor
▼14.5 +3.5
Magic Resist
30
Move Speed
335
Attack Range
▲450
Attack Speed
▼0.625 +2.11%
▲ ▼ mark stats that sit more than 2% off the roster average. That comparison is arithmetic on the values already published here - not a separate claim.
Abilities
DATA_PENDING
P
Death Defied
When Karthus dies he can use his Abilities for free for 7 seconds.
Q
Lay Waste
Creates a delayed blast, after 0.5 seconds, deals ([ 40 / 60 / 80 / 100 / 120 ] +30% AP) magic damage to each nearby enemy, this deals double damage if it hits only a single unit.
40 / 60 / 80 / 100 / 120+30% AP
W
Wall of Pain
Creates a wall at target location that lasts for 5 seconds. Enemies that pass through the wall have their Magic Resist reduced by 15% and Slowed by [ 40 / 50 / 60 / 70 / 80 ]% for 5 seconds (their Movement Speed gradually recovers over the duration).
E
Defile
Toggle Off: When Karthus kills a unit, he restores [ 20 / 27 / 34 / 41 / 48 ] Mana. Toggle On: Deal ([ 30 / 50 / 70 / 90 / 110 ] +20% AP) magic damage to nearby enemies each second.
30 / 50 / 70 / 90 / 110+20% AP
R
Requiem
Ultimate
After channeling for 3 seconds, Karthus deals ([ 250 / 400 / 550 ] +60% AP) magic damage to all enemy champions.
250 / 400 / 550+60% AP
Skins · 8
Catalog and art read directly from the Classic client files (build 18848366a9cb) - exactly the skins the client lists for Karthus, including the Classic throwback skins with their era models. © Riot Games.
Counters & matchups
OPENS AT LAUNCH
Who Karthus beats, loses to, and pairs with - reported from real Classic games after July 29, reviewed, and credited. We don't import matchup advice from modern League or from 2013; here's why. Played the matchups? Report them in Discord.
What Karthus's kit scales with
Every ratio below is read from Karthus's own ability text. We list them rather than turning them into a recommended build - which items and runes are actually good is opinion about a meta nobody has played yet, and that opens with community builds on July 29.
Resource
ManaMana and mana regen apply
Range
Ranged450 units
Ability ratios
Q
Lay Waste
E
Defile
R
Requiem
Reveal source
DATA_PENDING Source image retained for comparison. PBE-only facts remain provisional until the July 29 live-client check.
Modern vs Classic · 6 tracked changes
Karthus
Base Health
620
465
Health per level
110
75
Base Mana
467
331
Base Attack Damage
46
45.45
Base Armor
21
14.5
Armor per level
4.7
3.5
Every Classic value here is Source verified · Classic
values come from the PBE client; today's from Riot's live patch data (16.14.1). Regen stats are left
out on purpose - the two eras report them in different units, and we'd rather skip a row than fudge one.