Kassadin: change history

8 changes across 3 patches (May 27, 2026 to Sep 22, 2026), newest first. Nerf Radar tracks the 10 most recent official updates for League of Legends, back to May 27, 2026.

Buff 6Adjust 2

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Sep 22, 2026League of Legends Patch 26.19Buff 2Adjust 2Official notes ↗

Buff

League Classic Q - Null Sphere · Ability Power Ratio
Ability power ratio on Kassadin's Null Sphere (Q) increases from 60% to 70%.
60%→70%

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Ability Power Ratio: 60% → 70%

Adjust

League Classic E - Force Pulse · Damage
Damage on Kassadin's Force Pulse (E) changes from 60 / 120 / 180 / 240 / 300 (+80% AP) to 80 / 130 / 180 / 230 / 280 (+70% AP).
60 / 120 / 180 / 240 / 300 (+80% AP)→80 / 130 / 180 / 230 / 280 (+70% AP)

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Damage: 60 / 120 / 180 / 240 / 300 (+80% AP) → 80 / 130 / 180 / 230 / 280 (+70% AP)

Adjust

League Classic E - Force Pulse · Slow
Slow on Kassadin's Force Pulse (E) changes from 20 / 30 / 40 / 50 / 60% to 30 / 35 / 40 / 45 / 50%.
20 / 30 / 40 / 50 / 60%→30 / 35 / 40 / 45 / 50%

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Slow: 20 / 30 / 40 / 50 / 60% → 30 / 35 / 40 / 45 / 50%

Buff

League Classic R - Riftwalk · Range
Range on Kassadin's Riftwalk (R) increases from 600 to 700.
600→700

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Range: 600 → 700
Sep 9, 2026League of Legends Patch 26.18Buff 2Official notes ↗

Buff

Summoner's Rift Q - Null Sphere · Ability Power Ratio
Ability power ratio on Kassadin's Null Sphere (Q) increases from 70% AP to 80% AP.
70% AP→80% AP

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Ability Power Ratio: 70% AP → 80% AP

Buff

Summoner's Rift R - Riftwalk · Base Damage
Base damage on Kassadin's Riftwalk (R) increases from 70 / 90 / 110 to 80 / 95 / 110.
70 / 90 / 110→80 / 95 / 110

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Base Damage: 70 / 90 / 110 → 80 / 95 / 110
May 27, 2026League of Legends Patch 26.11Buff 2Official notes ↗

Buff

Summoner's Rift Q - Null Sphere · Cooldown
Cooldown on Kassadin's Null Sphere (Q) decreases from 10 / 9.5 / 9 / 8.5 / 8 to 9 / 8.5 / 8 / 7.5 / 7.
10 / 9.5 / 9 / 8.5 / 8→9 / 8.5 / 8 / 7.5 / 7

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Cooldown: 10 / 9.5 / 9 / 8.5 / 8 → 9 / 8.5 / 8 / 7.5 / 7

Buff

Summoner's Rift W - Nether Blade · Base Magic Damage
Base magic damage on Kassadin's Nether Blade (W) increases from 20 (+10% AP) to 25 (+10% AP).
20 (+10% AP)→25 (+10% AP)

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Base Magic Damage: 20 (+10% AP) → 25 (+10% AP)

Each step links to the full patch breakdown and to Riot Games's official notes. Changes listed under a general heading such as "Bug fixes" are not included here; search to find every mention.