
Cassiopeiavs Illaoi
Cassiopeia vs Illaoi is a decisive matchup in LoL patch 26.7. Illaoi wins with a 57.1% win rate (+14.3%) over Cassiopeia based on 7 games. Cassiopeia wins the early laning phase while Illaoi scales better into the late game. Below you'll find the best Cassiopeia build, runes, laning stats, and strategies for the Cassiopeia vs Illaoi matchup.
Cassiopeia Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Cassiopeia performs against them. You'll get head-to-head win rates, laning stats, the best build and runes for the matchup, and early vs late game analysis — all based on real ranked data.
Who Wins the Cassiopeia vs Illaoi Matchup?

Cassiopeia vs Illaoi Matchup Summary
The Cassiopeia vs Illaoi matchup is a decisive matchup in League of Legends ranked play. Based on 7 recent matches analyzed, Illaoi wins with a 57.1% win rate compared to Cassiopeia's 42.9%, giving Illaoi a 14.3 percentage point advantage. Game phase dynamics play a critical role here: Cassiopeia controls the early laning stage, but Illaoi outscales as the game goes longer. The matchup shifts dramatically depending on game length — Cassiopeia needs to press advantages before Illaoi reaches their power spikes, while Illaoi should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in crowd control, where Cassiopeia leads by 1.0s CC/min — a difference that heavily influences the outcome of trades and skirmishes. Illaoi has a strong advantage in this matchup. Cassiopeia players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Illaoi overextending. Avoid prolonged trades and wait for team fights where positioning and coordination matter more. Understanding these matchup dynamics is essential for champion select decisions and in-game strategy when facing this lane opponent.
Cassiopeia vs Illaoi Laning Phase Breakdown
Cassiopeia is favored during the laning phase against Illaoi, winning 3 out of 5 key stat categories. Cassiopeia holds advantages in farming, gold income and crowd control, making them the stronger laner in this matchup.
Best Cassiopeia Build Against Illaoi
Sorcerer's Shoes is the optimal boots choice against Illaoi, providing the mobility and stats Cassiopeia needs most in this matchup. The top-performing core items for Cassiopeia against Illaoi are Rod of Ages, Liandry's Torment and Rylai's Crystal Scepter. This combination gives Cassiopeia an effective balance of damage, survivability, and utility for the matchup. This build performs exceptionally well, achieving a 100.0% win rate across 2 games — well above average and making it the top item path against Illaoi. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Cassiopeia vs Illaoi matchup.
Early Game vs Late Game
The early game (first 15 minutes) is a toss-up between Cassiopeia and Illaoi, with Cassiopeia holding a razor-thin 50.0% win rate edge (+0.0%). Individual skill and jungle proximity will matter more than champion advantage in the early laning phase.
Illaoi is far superior in the late game (25+ minutes), boasting a 60.0% win rate — 20.0 points above Cassiopeia. Extended games heavily favor Illaoi, whose kit and scaling make them a dominant force in team fights and objective control.
The power dynamics shift as the game progresses — Cassiopeia has the edge early, but Illaoi gradually takes over. However, the margins are slim enough that either champion can win at any stage with the right plays. Focus on taking advantages when you have them rather than waiting for a specific game phase.
Best Cassiopeia Runes Against Illaoi
The Precision and Sorcery rune setup gives Cassiopeia the best tools to compete against Illaoi in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Cassiopeia matchup data for League of Legends patch 26.7. The table below shows Cassiopeia's win rate, gold difference, and performance stats against every champion in the current meta. Click any champion name to see a detailed head-to-head breakdown including the best Cassiopeia build, runes, laning stats, and early vs late game analysis for that specific matchup.
Opponent | Win Rate | Matches | CS/min | DMG/min | Gold/game | Early WR | Late WR |
|---|---|---|---|---|---|---|---|
| 56.25% | 32 | 6.7 | 885 | 12,088 | 50.0% | 66.7% | |
| 55.17% | 29 | 7.0 | 829 | 11,663 | 50.0% | 60.0% | |
| 48.00% | 25 | 6.7 | 767 | 12,316 | 50.0% | 47.4% | |
| 47.83% | 23 | 6.8 | 729 | 11,512 | 40.0% | 62.5% | |
| 45.45% | 22 | 6.3 | 859 | 13,061 | 20.0% | 52.9% | |
| 59.09% | 22 | 6.4 | 849 | 12,548 | 62.5% | 57.1% | |
| 42.11% | 19 | 6.9 | 864 | 11,121 | 27.3% | 62.5% | |
| 42.11% | 19 | 6.5 | 908 | 10,894 | 33.3% | 57.1% | |
| 57.89% | 19 | 6.4 | 921 | 12,992 | 28.6% | 75.0% | |
| 41.18% | 17 | 6.3 | 739 | 12,065 | 37.5% | 44.4% | |
| 35.29% | 17 | 6.7 | 736 | 11,498 | 14.3% | 50.0% | |
| 58.82% | 17 | 7.0 | 761 | 10,089 | 61.5% | 50.0% | |
| 43.75% | 16 | 6.5 | 793 | 12,564 | 33.3% | 46.1% | |
| 37.50% | 16 | 6.6 | 799 | 11,966 | 33.3% | 40.0% | |
| 37.50% | 16 | 6.7 | 692 | 11,337 | 28.6% | 44.4% | |
| 66.67% | 15 | 6.1 | 948 | 12,981 | 75.0% | 63.6% | |
| 66.67% | 15 | 7.0 | 980 | 13,675 | 100.0% | 54.5% | |
| 50.00% | 14 | 6.5 | 804 | 11,933 | 33.3% | 62.5% | |
| 57.14% | 14 | 6.5 | 650 | 11,062 | 50.0% | 62.5% | |
| 21.43% | 14 | 6.4 | 858 | 12,885 | 66.7% | 9.1% | |
| 46.15% | 13 | 6.8 | 691 | 9,869 | 37.5% | 60.0% | |
| 69.23% | 13 | 6.4 | 940 | 11,618 | 66.7% | 71.4% | |
| 58.33% | 12 | 6.9 | 840 | 13,601 | 50.0% | 66.7% | |
| 66.67% | 12 | 6.9 | 1,017 | 11,759 | 50.0% | 83.3% | |
| 36.36% | 11 | 6.2 | 623 | 11,142 | 60.0% | 16.7% | |
| 81.82% | 11 | 6.8 | 942 | 11,319 | 71.4% | 100.0% | |
| 54.55% | 11 | 6.5 | 930 | 13,223 | 60.0% | 50.0% | |
| 63.64% | 11 | 7.4 | 659 | 9,845 | 55.6% | 100.0% | |
| 36.36% | 11 | 5.5 | 830 | 12,700 | 25.0% | 42.9% | |
| 45.45% | 11 | 6.7 | 1,090 | 12,212 | 25.0% | 57.1% | |
| 45.45% | 11 | 7.1 | 790 | 11,958 | 50.0% | 42.9% | |
| 40.00% | 10 | 6.4 | 836 | 13,983 | 33.3% | 42.9% | |
| 20.00% | 10 | 7.5 | 658 | 11,942 | 0.0% | 25.0% | |
| 77.78% | 9 | 7.0 | 930 | 11,929 | 100.0% | 60.0% | |
| 44.44% | 9 | 6.1 | 1,062 | 14,147 | 100.0% | 37.5% | |
| 33.33% | 9 | 6.3 | 740 | 10,388 | 20.0% | 50.0% | |
| 62.50% | 8 | 6.2 | 932 | 12,070 | 75.0% | 50.0% | |
| 50.00% | 8 | 6.5 | 840 | 11,206 | 60.0% | 33.3% | |
| 62.50% | 8 | 7.2 | 1,069 | 13,954 | 50.0% | 66.7% | |
| 37.50% | 8 | 7.3 | 753 | 11,987 | 0.0% | 60.0% | |
| 62.50% | 8 | 6.5 | 804 | 12,100 | 40.0% | 100.0% | |
| 71.43% | 7 | 6.7 | 1,077 | 12,316 | 50.0% | 80.0% | |
| 42.86% | 7 | 6.6 | 1,025 | 13,529 | 50.0% | 40.0% | |
| 57.14% | 7 | 6.2 | 825 | 11,090 | 66.7% | 50.0% | |
| 28.57% | 7 | 6.4 | 793 | 13,236 | 50.0% | 0.0% | |
| 85.71% | 7 | 7.0 | 970 | 12,450 | 100.0% | 75.0% | |
| 83.33% | 6 | 6.8 | 641 | 10,210 | 75.0% | 100.0% | |
| 33.33% | 6 | 6.5 | 752 | 10,289 | 25.0% | 50.0% | |
| 83.33% | 6 | 6.7 | 840 | 13,445 | 50.0% | 100.0% | |
| 33.33% | 6 | 6.8 | 758 | 10,811 | 25.0% | 50.0% | |
| 66.67% | 6 | 5.9 | 872 | 14,875 | 100.0% | 60.0% | |
| 16.67% | 6 | 6.1 | 558 | 10,776 | 0.0% | 50.0% | |
| 83.33% | 6 | 6.9 | 862 | 13,632 | 100.0% | 50.0% | |
| 60.00% | 5 | 7.1 | 905 | 15,491 | 0.0% | 75.0% | |
| 0.00% | 5 | 6.9 | 1,073 | 12,453 | 0.0% | 0.0% | |
| 60.00% | 5 | 7.3 | 1,077 | 13,114 | 66.7% | 50.0% | |
| 80.00% | 5 | 6.9 | 999 | 12,801 | 100.0% | 50.0% | |
| 40.00% | 5 | 6.7 | 834 | 10,909 | 33.3% | 50.0% | |
| 20.00% | 5 | 5.7 | 754 | 9,531 | 33.3% | 0.0% | |
| 80.00% | 5 | 7.0 | 796 | 11,092 | 75.0% | 100.0% | |
| 40.00% | 5 | 6.7 | 745 | 13,361 | 100.0% | 0.0% | |
| 80.00% | 5 | 7.2 | 675 | 8,508 | 100.0% | 50.0% | |
| 60.00% | 5 | 5.9 | 1,144 | 16,919 | 0.0% | 60.0% | |
| 60.00% | 5 | 6.7 | 732 | 9,347 | 100.0% | 0.0% | |
| 20.00% | 5 | 6.8 | 954 | 11,166 | 33.3% | 0.0% | |
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Cassiopeia vs Illaoi - Frequently Asked Questions
How does Cassiopeia do against Illaoi in League of Legends?
Illaoi wins the Cassiopeia vs Illaoi matchup with a 57.1% win rate compared to Cassiopeia's 42.9%, a 14.3 percentage point difference. This data is based on 7 recent ranked games in patch 26.7.
How does Cassiopeia do against Illaoi in the early game?
In the early game, Cassiopeia has the advantage against Illaoi with a 50.0% win rate versus 50.0%. Cassiopeia players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Cassiopeia do against Illaoi in the late game?
In the late game, Illaoi takes over the Cassiopeia vs Illaoi matchup with a 60.0% win rate compared to 40.0%. Illaoi scales better into team fights and objective contests after 25 minutes.
Who wins the Cassiopeia vs Illaoi matchup?
Illaoi wins the matchup against Cassiopeia with a 57.1% win rate in League of Legends patch 26.7. The 14.3 percentage point advantage means Illaoi is significantly favored in this lane matchup based on 7 games analyzed.
What is the best Cassiopeia build against Illaoi?
The best Cassiopeia build against Illaoi includes Rod of Ages, Liandry's Torment, Rylai's Crystal Scepter with Sorcerer's Shoes. This build achieves a 100.0% win rate in the matchup. Check the matchup breakdown above for the full item path and build order.
What are the best Cassiopeia runes against Illaoi?
The best Cassiopeia runes against Illaoi use the Precision primary tree with Sorcery secondary. This rune setup achieves a 100.0% win rate in the Cassiopeia vs Illaoi matchup. See the full rune breakdown in the matchup comparison above.
Does Cassiopeia counter Illaoi?
No, Cassiopeia struggles against Illaoi with only a 42.9% win rate. Illaoi has the advantage in this matchup. Cassiopeia players should focus on safe farming and avoiding extended trades to minimize Illaoi's lead.
How do I play Cassiopeia against Illaoi?
When playing Cassiopeia against Illaoi, play cautiously and avoid Illaoi's power spikes. Look for jungle assistance and team-dependent plays since Illaoi has the statistical advantage at most stages. Use the matchup-specific build and runes above to optimize your chances.