Cassiopeia LoL Stats, Builds, Counters and Synergies

RiftMind tracks Cassiopeia champion stats by role, including win rate, pick rate, builds, counters, matchups, and synergies for League of Legends draft analysis.

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

Cassiopeia role performance snapshot

  1. Cassiopeia Mid stats - Cassiopeia Mid has 46.1% win rate, 1.3% pick rate, and 13,931 ranked games in the current RiftMind data set. Win rate changed +0.2 percentage points from the comparison patch. Pick rate changed +0.2 percentage points from the comparison patch.
  2. Cassiopeia Top stats - Cassiopeia Top has 49.1% win rate, 0.2% pick rate, and 2,540 ranked games in the current RiftMind data set. Win rate changed +1.9 percentage points from the comparison patch. Pick rate changed +0.0 percentage points from the comparison patch.
  3. Cassiopeia ADC stats - Cassiopeia ADC has 49.6% win rate, 0.2% pick rate, and 1,628 ranked games in the current RiftMind data set. Win rate changed +2.0 percentage points from the comparison patch. Pick rate changed +0.0 percentage points from the comparison patch.

Top 5 Low Elo Cassiopeia counter matchups

  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.

Top 5 Low Elo champions Cassiopeia 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.

Top 5 Low Elo Cassiopeia strongest synergies

  1. Yone Top - 46.3% win rate with Cassiopeia Mid (+0.7 points vs expected), 1,759 games.
  2. Sett Top - 49.7% win rate with Cassiopeia Mid (+0.7 points vs expected), 1,568 games.
  3. Pyke Support - 48.1% win rate with Cassiopeia Mid (+0.6 points vs expected), 1,142 games.
  4. Darius Top - 46.5% win rate with Cassiopeia Mid (+0.6 points vs expected), 1,763 games.
  5. Lucian ADC - 46.1% win rate with Cassiopeia Mid (+0.6 points vs expected), 1,422 games.

Top 5 Low Elo Cassiopeia weakest synergies

  1. Teemo Top - 44.0% win rate with Cassiopeia Mid (-1.0 points vs expected), 1,244 games.
  2. Mordekaiser Top - 46.9% win rate with Cassiopeia Mid (-0.7 points vs expected), 1,382 games.
  3. Malphite Top - 47.0% win rate with Cassiopeia Mid (-0.5 points vs expected), 1,339 games.
  4. Seraphine Support - 44.4% win rate with Cassiopeia Mid (-0.5 points vs expected), 1,878 games.
  5. Lux Support - 45.9% win rate with Cassiopeia Mid (-0.4 points vs expected), 2,391 games.

Top 5 High Elo Cassiopeia counter matchups

  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.

Top 5 High Elo champions Cassiopeia 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.

Top 5 High Elo Cassiopeia strongest synergies

  1. Pyke Support - 49.2% win rate with Cassiopeia Mid (+1.0 points vs expected), 1,011 games.
  2. Nautilus Support - 48.4% win rate with Cassiopeia Mid (+0.7 points vs expected), 2,092 games.
  3. Blitzcrank Support - 51.9% win rate with Cassiopeia Mid (+0.7 points vs expected), 1,293 games.
  4. Leona Support - 51.8% win rate with Cassiopeia Mid (+0.6 points vs expected), 1,266 games.
  5. Tristana ADC - 49.5% win rate with Cassiopeia Mid (+0.4 points vs expected), 1,447 games.

Top 5 High Elo Cassiopeia weakest synergies

  1. Lulu Support - 48.5% win rate with Cassiopeia Mid (-0.6 points vs expected), 2,365 games.
  2. Karma Support - 46.3% win rate with Cassiopeia Mid (-0.4 points vs expected), 1,393 games.
  3. Nami Support - 48.1% win rate with Cassiopeia Mid (-0.4 points vs expected), 1,367 games.
  4. Graves Jungle - 45.8% win rate with Cassiopeia Mid (-0.2 points vs expected), 1,436 games.
  5. Milio Support - 46.0% win rate with Cassiopeia Mid (-0.2 points vs expected), 1,086 games.

How RiftMind calculates these stats

RiftMind calculates these statistics from Ranked Solo/Duo match records filtered by patch, region, rank scope, champion, and role.

Champion role, build, rune, and item summaries use patch-specific aggregates, while counter and synergy pages compare observed results with role-adjusted expectations over a rolling patch window.

Read the full methodology for the data filters and interpretation guidance.