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League of Legends

Cassiopeia: change history

12 changes across 3 patches (Jun 23, 2026 to Oct 6, 2026), newest first. Nerf Radar tracks the 10 most recent official updates for League of Legends, back to May 27, 2026.
Buff 3Nerf 9
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  1. League of Legends Patch 26.20Nerf 2Official notes ↗
    Nerf
    Summoner's Rift Base Stats · Base Health
    Cassiopeia's base health decreases from 630 to 610.
    630→610
    Source line
    Base Health: 630 → 610
    Nerf
    Summoner's Rift Base Stats · Base Mana
    Cassiopeia's base mana decreases from 480 to 450.
    480→450
    Source line
    Base Mana: 480 → 450
  2. League of Legends Patch 26.18Buff 3Nerf 6Official notes ↗
    Nerf
    Summoner's Rift Passive - Serpentine Grace · Move Speed Bonus
    Move speed bonus on Cassiopeia's Serpentine Grace (Passive) decreases from 6%–40% (based on level) to 5%–36% (based on level).
    6%–40% (based on level)→5%–36% (based on level)
    Source line
    Move Speed Bonus: 6% - 40% (based on level) → 5% - 36% (based on level)
    Nerf
    Summoner's Rift Q - Noxious Blast · Damage
    Damage on Cassiopeia's Noxious Blast (Q) decreases from 75 / 110 / 145 / 180 / 215 to 65 / 100 / 135 / 170 / 205.
    75 / 110 / 145 / 180 / 215→65 / 100 / 135 / 170 / 205
    Source line
    Damage: 75 / 110 / 145 / 180 / 215 → 65 / 100 / 135 / 170 / 205
    Buff
    Summoner's Rift Q - Noxious Blast · Ability Power Ratio
    Ability power ratio on Cassiopeia's Noxious Blast (Q) increases from 65% to 75%.
    65%→75%
    Source line
    Ability Power Ratio: 65% → 75%
    Nerf
    Summoner's Rift E - Twin Fang · Mana Cost
    Mana cost on Cassiopeia's Twin Fang (E) increases from 40 to 45.
    40→45
    Source line
    Mana Cost: 40 → 45
    Buff
    Summoner's Rift E - Twin Fang · Base Ability Power Ratio
    Base ability power ratio on Cassiopeia's Twin Fang (E) increases from 10% to 20%.
    10%→20%
    Source line
    Base Ability Power Ratio: 10% → 20%
    Nerf
    Summoner's Rift E - Twin Fang · Enhanced Ability Power Ratio
    Enhanced ability power ratio on Cassiopeia's Twin Fang (E) decreases from 55% to 45%.
    55%→45%
    Source line
    Enhanced Ability Power Ratio: 55% → 45%
    Nerf
    Summoner's Rift E - Twin Fang · Damage
    Damage on Cassiopeia's Twin Fang (E) decreases from 52–120 to 50–120.
    52–120→50–120
    Source line
    Damage: 52 - 120 → 50 - 120
    Nerf
    Summoner's Rift R - Petrifying Gaze · Damage
    Damage on Cassiopeia's Petrifying Gaze (R) decreases from 150 / 250 / 350 to 125 / 225 / 325.
    150 / 250 / 350→125 / 225 / 325
    Source line
    Damage: 150 / 250 / 350 → 125 / 225 / 325
    Buff
    Summoner's Rift R - Petrifying Gaze · Ability Power Ratio
    Ability power ratio on Cassiopeia's Petrifying Gaze (R) increases from 50% to 75%.
    50%→75%
    Source line
    Ability Power Ratio: 50% → 75%
  3. League of Legends Patch 26.13Nerf 1Official notes ↗
    Nerf
    Summoner's Rift Base Stats · Health per level
    Cassiopeia's health per level decreases from 104 to 98.
    104→98
    Source line
    Health per level: 104 → 98

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.