When Karthus dies he can use his Abilities for free for 7 seconds.
By rank and level
—
CD
0s
Mana
20
Range
875
Magic damage40
Single target magic damage80
Karthus creates a blast of magic, dealing 40 magic damage. If the blast hits only one enemy, it instead deals 80 magic damage.
By rank and level
Magic damagex: Rank
Steady change: +19 per +1 Rank
Single target magic damagex: Rank
Steady change: +38 per +1 Rank
Mana Costx: Rank
Steady change: +5 per +1 Rank
Cooldownx: Rank
CD
15s
Mana
70
Range
1000
—
No other values
Karthus creates a wall that lasts for 5 seconds. Enemies that pass through lose 25% Magic Resist for 5 seconds and are Slowed by 40% decaying over the duration.
By rank and level
Wall Widthx: Rank
Steady change: +100 per +1 Rank
Move Speed Slow (%)x: Rank
Steady change: +10 per +1 Rank
Cooldownx: Rank
Mana costx: Rank
CD
0.5s
Mana
30
Range
550
Magic damage per second30
No other values
Passive: When Karthus kills a unit, he restores 10 Mana.
Toggle: Karthus creates a necrotic aura, dealing 30 magic damage per second to nearby enemies.
By rank and level
Magic damage per secondx: Rank
Steady change: +20 per +1 Rank
Mana Restorex: Rank
Steady change: +10 per +1 Rank
Mana Costx: Rank
Steady change: +12 per +1 Rank
Cooldownx: Rank
CD
200s
Mana
100
Range
10000
Magic damage200
No other values
Karthus channels for 3 seconds, then deals 200 magic damage to enemy champions, regardless of distance.
By rank and level
Magic damagex: Rank
Steady change: +150 per +1 Rank
Cooldownx: Rank
Steady change: −20 per +1 Rank
Mana costx: Rank
Base Stats
Base values at level 1 (no bonus stats) · charts start at 0 and show Lv1→18 growth
Health×4
620Lv1
Lv1 620 → Lv18 2490 · Per level +110
Biggest change: +141 (+6%) at Lv18
Mana×2.1
467Lv1
Lv1 467 → Lv18 994 · Per level +31
Biggest change: +40 (+4.2%) at Lv18
Attack Damage×2.2
46Lv1
Lv1 46 → Lv18 101.3 · Per level +3.25
Biggest change: +4.2 (+4.3%) at Lv18
Attack Speed×1.4
0.625Lv1
Lv1 0.625 → Lv18 0.849 · Per level +2.11%
Biggest change: +0.017 (+2%) at Lv18
Armor×4.8
21Lv1
Lv1 21 → Lv18 100.9 · Per level +4.7
Biggest change: +6 (+6.3%) at Lv18
Magic Resist×1.7
30Lv1
Lv1 30 → Lv18 52.1 · Per level +1.3
Biggest change: +1.7 (+3.3%) at Lv18
Health Regen (5s)×2.4
6.5Lv1
Lv1 6.5 → Lv18 15.9 · Per level +0.55
Biggest change: +0.7 (+4.6%) at Lv18
Mana Regen (5s)×2.7
8Lv1
Lv1 8 → Lv18 21.6 · Per level +0.8
Biggest change: +1 (+5%) at Lv18
Fixed at every levelMove Speed335Attack Range450AS ratio0.625
Scaling profile
AP
90%
Mana
5%
AD
4%
Attack Speed
2%
Ability coefficients weighted by typical build stat amounts (derived from data, not match statistics).
Relative score from how well the item's stats match the champion's ability coefficients (game data, not match statistics). Item passives are not modeled yet.