Best Cassiopeia Mid Counters

Low Elo data lists Syndra Mid, Zed Mid, Viktor Mid, Malzahar Mid, and Veigar Mid as the strongest counters for Cassiopeia Mid. Cassiopeia Mid is listed as favorable into Sylas Mid, Locke Mid, Yasuo Mid, Akali Mid, Yone Mid, Katarina Mid, and Ahri Mid. The detailed info below lists each matchup with observed win rate, expected win rate delta, sample size, rank scope, and patch window.

Updated 2026-11-15. Data is current for LoL patch 26.22 (all regions, low elo and high elo).

Cassiopeia Mid matchup tips

  1. Cassiopeia vs Malzahar Mid - Use Noxious Blast(Q) to remove Void Shift(P) before committing to Twin Fang(E); if Malzahar spends Call of the Void(Q) on the wave, Cass players identify that as a safer window to trade.

Top 5 Low Elo Cassiopeia Mid same-role counters

  1. Syndra Mid - Low Elo data: Cassiopeia Mid vs Syndra Mid, 41.3% observed win rate, -3.7 percentage points vs expected, 1,803 games, 3-patch window 26.20-26.22.
  2. Zed Mid - Low Elo data: Cassiopeia Mid vs Zed Mid, 45.4% observed win rate, -1.1 percentage points vs expected, 1,495 games, 3-patch window 26.20-26.22.
  3. Viktor Mid - Low Elo data: Cassiopeia Mid vs Viktor Mid, 44.8% observed win rate, -0.9 percentage points vs expected, 1,479 games, 3-patch window 26.20-26.22.
  4. Malzahar Mid - Low Elo data: Cassiopeia Mid vs Malzahar Mid, 43.6% observed win rate, -0.6 percentage points vs expected, 1,400 games, 3-patch window 26.20-26.22.
  5. Veigar Mid - Low Elo data: Cassiopeia Mid vs Veigar Mid, 44.7% observed win rate, -0.5 percentage points vs expected, 1,138 games, 3-patch window 26.20-26.22.

Top 7 Low Elo champions Cassiopeia Mid is good against

  1. Sylas Mid - Low Elo data: Cassiopeia Mid vs Sylas Mid, 50.8% observed win rate, +2.4 percentage points vs expected, 1,322 games, 3-patch window 26.20-26.22.
  2. Locke Mid - Low Elo data: Cassiopeia Mid vs Locke Mid, 51.4% observed win rate, +1.8 percentage points vs expected, 1,017 games, 3-patch window 26.20-26.22.
  3. Yasuo Mid - Low Elo data: Cassiopeia Mid vs Yasuo Mid, 47.3% observed win rate, +1.8 percentage points vs expected, 2,112 games, 3-patch window 26.20-26.22.
  4. Akali Mid - Low Elo data: Cassiopeia Mid vs Akali Mid, 48.6% observed win rate, +1.4 percentage points vs expected, 1,421 games, 3-patch window 26.20-26.22.
  5. Yone Mid - Low Elo data: Cassiopeia Mid vs Yone Mid, 46.1% observed win rate, +1.1 percentage points vs expected, 1,952 games, 3-patch window 26.20-26.22.
  6. Katarina Mid - Low Elo data: Cassiopeia Mid vs Katarina Mid, 47.3% observed win rate, +0.9 percentage points vs expected, 1,053 games, 3-patch window 26.20-26.22.
  7. Ahri Mid - Low Elo data: Cassiopeia Mid vs Ahri Mid, 46.1% observed win rate, +0.7 percentage points vs expected, 2,179 games, 3-patch window 26.20-26.22.

Top 10 Low Elo Cassiopeia Mid all-role counters

  1. Syndra Mid - Low Elo data: Cassiopeia Mid vs Syndra Mid, 41.3% observed win rate, -3.7 percentage points vs expected, 1,803 games, 3-patch window 26.20-26.22.
  2. Lux Support - Low Elo data: Cassiopeia Mid vs Lux Support, 43.1% observed win rate, -1.2 percentage points vs expected, 2,246 games, 3-patch window 26.20-26.22.
  3. Zed Mid - Low Elo data: Cassiopeia Mid vs Zed Mid, 45.4% observed win rate, -1.1 percentage points vs expected, 1,495 games, 3-patch window 26.20-26.22.
  4. Miss Fortune ADC - Low Elo data: Cassiopeia Mid vs Miss Fortune ADC, 42.4% observed win rate, -0.9 percentage points vs expected, 2,759 games, 3-patch window 26.20-26.22.
  5. Viktor Mid - Low Elo data: Cassiopeia Mid vs Viktor Mid, 44.8% observed win rate, -0.9 percentage points vs expected, 1,479 games, 3-patch window 26.20-26.22.
  6. Seraphine Support - Low Elo data: Cassiopeia Mid vs Seraphine Support, 42.4% observed win rate, -0.8 percentage points vs expected, 1,801 games, 3-patch window 26.20-26.22.
  7. Jhin ADC - Low Elo data: Cassiopeia Mid vs Jhin ADC, 44.4% observed win rate, -0.7 percentage points vs expected, 3,609 games, 3-patch window 26.20-26.22.
  8. Ashe ADC - Low Elo data: Cassiopeia Mid vs Ashe ADC, 45.2% observed win rate, -0.7 percentage points vs expected, 1,616 games, 3-patch window 26.20-26.22.
  9. Smolder ADC - Low Elo data: Cassiopeia Mid vs Smolder ADC, 41.3% observed win rate, -0.7 percentage points vs expected, 1,150 games, 3-patch window 26.20-26.22.
  10. Malzahar Mid - Low Elo data: Cassiopeia Mid vs Malzahar Mid, 43.6% observed win rate, -0.6 percentage points vs expected, 1,400 games, 3-patch window 26.20-26.22.

Top 10 Low Elo all-role champions Cassiopeia Mid is good against

  1. Sylas Mid - Low Elo data: Cassiopeia Mid vs Sylas Mid, 50.8% observed win rate, +2.4 percentage points vs expected, 1,322 games, 3-patch window 26.20-26.22.
  2. Locke Mid - Low Elo data: Cassiopeia Mid vs Locke Mid, 51.4% observed win rate, +1.8 percentage points vs expected, 1,017 games, 3-patch window 26.20-26.22.
  3. Yasuo Mid - Low Elo data: Cassiopeia Mid vs Yasuo Mid, 47.3% observed win rate, +1.8 percentage points vs expected, 2,112 games, 3-patch window 26.20-26.22.
  4. Akali Mid - Low Elo data: Cassiopeia Mid vs Akali Mid, 48.6% observed win rate, +1.4 percentage points vs expected, 1,421 games, 3-patch window 26.20-26.22.
  5. Sylas Jungle - Low Elo data: Cassiopeia Mid vs Sylas Jungle, 50.9% observed win rate, +1.2 percentage points vs expected, 1,383 games, 3-patch window 26.20-26.22.
  6. Yone Mid - Low Elo data: Cassiopeia Mid vs Yone Mid, 46.1% observed win rate, +1.1 percentage points vs expected, 1,952 games, 3-patch window 26.20-26.22.
  7. Tristana ADC - Low Elo data: Cassiopeia Mid vs Tristana ADC, 49.4% observed win rate, +1.1 percentage points vs expected, 1,624 games, 3-patch window 26.20-26.22.
  8. Katarina Mid - Low Elo data: Cassiopeia Mid vs Katarina Mid, 47.3% observed win rate, +0.9 percentage points vs expected, 1,053 games, 3-patch window 26.20-26.22.
  9. Kai'Sa ADC - Low Elo data: Cassiopeia Mid vs Kai'Sa ADC, 47.1% observed win rate, +0.8 percentage points vs expected, 3,761 games, 3-patch window 26.20-26.22.
  10. Nautilus Support - Low Elo data: Cassiopeia Mid vs Nautilus Support, 47.7% observed win rate, +0.7 percentage points vs expected, 2,437 games, 3-patch window 26.20-26.22.

Top 5 High Elo Cassiopeia Mid same-role counters

  1. Syndra Mid - High Elo data: Cassiopeia Mid vs Syndra Mid, 46.2% observed win rate, -2.3 percentage points vs expected, 2,038 games, 3-patch window 26.20-26.22.
  2. Zed Mid - High Elo data: Cassiopeia Mid vs Zed Mid, 46.4% observed win rate, -1.5 percentage points vs expected, 1,146 games, 3-patch window 26.20-26.22.
  3. Ahri Mid - High Elo data: Cassiopeia Mid vs Ahri Mid, 46.4% observed win rate, -0.8 percentage points vs expected, 1,537 games, 3-patch window 26.20-26.22.
  4. Viktor Mid - High Elo data: Cassiopeia Mid vs Viktor Mid, 49.1% observed win rate, -0.7 percentage points vs expected, 1,482 games, 3-patch window 26.20-26.22.
  5. Locke Mid - High Elo data: Cassiopeia Mid vs Locke Mid, 48.5% observed win rate, -0.3 percentage points vs expected, 1,147 games, 3-patch window 26.20-26.22.

Top 3 High Elo champions Cassiopeia Mid is good against

  1. Yasuo Mid - High Elo data: Cassiopeia Mid vs Yasuo Mid, 50.6% observed win rate, +2.3 percentage points vs expected, 1,251 games, 3-patch window 26.20-26.22.
  2. Yone Mid - High Elo data: Cassiopeia Mid vs Yone Mid, 49.8% observed win rate, +1.0 percentage points vs expected, 1,224 games, 3-patch window 26.20-26.22.
  3. Sylas Mid - High Elo data: Cassiopeia Mid vs Sylas Mid, 51.2% observed win rate, +0.7 percentage points vs expected, 1,606 games, 3-patch window 26.20-26.22.

Top 10 High Elo Cassiopeia Mid all-role counters

  1. Syndra Mid - High Elo data: Cassiopeia Mid vs Syndra Mid, 46.2% observed win rate, -2.3 percentage points vs expected, 2,038 games, 3-patch window 26.20-26.22.
  2. Kha'Zix Jungle - High Elo data: Cassiopeia Mid vs Kha'Zix Jungle, 43.6% observed win rate, -1.9 percentage points vs expected, 1,022 games, 3-patch window 26.20-26.22.
  3. Qiyana Jungle - High Elo data: Cassiopeia Mid vs Qiyana Jungle, 45.8% observed win rate, -1.5 percentage points vs expected, 1,392 games, 3-patch window 26.20-26.22.
  4. Zed Mid - High Elo data: Cassiopeia Mid vs Zed Mid, 46.4% observed win rate, -1.5 percentage points vs expected, 1,146 games, 3-patch window 26.20-26.22.
  5. Hecarim Jungle - High Elo data: Cassiopeia Mid vs Hecarim Jungle, 48.1% observed win rate, -1.1 percentage points vs expected, 1,030 games, 3-patch window 26.20-26.22.
  6. Ahri Mid - High Elo data: Cassiopeia Mid vs Ahri Mid, 46.4% observed win rate, -0.8 percentage points vs expected, 1,537 games, 3-patch window 26.20-26.22.
  7. Talon Jungle - High Elo data: Cassiopeia Mid vs Talon Jungle, 48.4% observed win rate, -0.7 percentage points vs expected, 1,083 games, 3-patch window 26.20-26.22.
  8. Viktor Mid - High Elo data: Cassiopeia Mid vs Viktor Mid, 49.1% observed win rate, -0.7 percentage points vs expected, 1,482 games, 3-patch window 26.20-26.22.
  9. Jinx ADC - High Elo data: Cassiopeia Mid vs Jinx ADC, 46.5% observed win rate, -0.5 percentage points vs expected, 1,884 games, 3-patch window 26.20-26.22.
  10. Zeri ADC - High Elo data: Cassiopeia Mid vs Zeri ADC, 44.7% observed win rate, -0.5 percentage points vs expected, 1,022 games, 3-patch window 26.20-26.22.

Top 10 High Elo all-role champions Cassiopeia Mid is good against

  1. Yasuo Mid - High Elo data: Cassiopeia Mid vs Yasuo Mid, 50.6% observed win rate, +2.3 percentage points vs expected, 1,251 games, 3-patch window 26.20-26.22.
  2. Wukong Jungle - High Elo data: Cassiopeia Mid vs Wukong Jungle, 50.7% observed win rate, +1.4 percentage points vs expected, 1,097 games, 3-patch window 26.20-26.22.
  3. Sylas Jungle - High Elo data: Cassiopeia Mid vs Sylas Jungle, 51.6% observed win rate, +1.3 percentage points vs expected, 1,553 games, 3-patch window 26.20-26.22.
  4. Kalista ADC - High Elo data: Cassiopeia Mid vs Kalista ADC, 51.1% observed win rate, +1.1 percentage points vs expected, 1,051 games, 3-patch window 26.20-26.22.
  5. Yone Mid - High Elo data: Cassiopeia Mid vs Yone Mid, 49.8% observed win rate, +1.0 percentage points vs expected, 1,224 games, 3-patch window 26.20-26.22.
  6. Kai'Sa ADC - High Elo data: Cassiopeia Mid vs Kai'Sa ADC, 49.8% observed win rate, +0.9 percentage points vs expected, 3,565 games, 3-patch window 26.20-26.22.
  7. Sylas Mid - High Elo data: Cassiopeia Mid vs Sylas Mid, 51.2% observed win rate, +0.7 percentage points vs expected, 1,606 games, 3-patch window 26.20-26.22.
  8. Lee Sin Jungle - High Elo data: Cassiopeia Mid vs Lee Sin Jungle, 50.9% observed win rate, +0.6 percentage points vs expected, 2,419 games, 3-patch window 26.20-26.22.
  9. Graves Jungle - High Elo data: Cassiopeia Mid vs Graves Jungle, 49.3% observed win rate, +0.4 percentage points vs expected, 1,271 games, 3-patch window 26.20-26.22.
  10. Thresh Support - High Elo data: Cassiopeia Mid vs Thresh Support, 48.1% observed win rate, +0.4 percentage points vs expected, 2,439 games, 3-patch window 26.20-26.22.

How these matchup statistics are calculated

Counter and synergy statistics use Ranked Solo/Duo games, exclude matches shorter than 600 seconds, and group results by patch window, region, rank scope, and champion role.

Pairwise pages use a rolling three-patch window and compare observed win rate with a log-odds expected win rate based on each champion's role-adjusted baseline; listed pairs require at least 1,000 games.

Read the full methodology for the model and guidance on interpreting these results.