Cassiopeiavs Illaoi
Cassiopeia vs Illaoi is a decisive matchup in LoL patch 26.10. Illaoi wins with a 60.0% win rate (+20.0%) over Cassiopeia based on 10 games. Illaoi wins the early laning phase while Cassiopeia 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.
Illaoi(40.0%)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 10 recent matches analyzed, Illaoi wins with a 60.0% win rate compared to Cassiopeia's 40.0%, giving Illaoi a 20.0 percentage point advantage. Game phase dynamics play a critical role here: Illaoi controls the early laning stage, but Cassiopeia outscales as the game goes longer. The matchup shifts dramatically depending on game length — Illaoi needs to press advantages before Cassiopeia reaches their power spikes, while Cassiopeia should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in crowd control, where Cassiopeia leads by 1.1s 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
Illaoi is favored during the laning phase against Cassiopeia, winning 3 out of 5 key stat categories. Illaoi holds advantages in farming, gold income and sustain, making them the stronger laner in this matchup.
Best Cassiopeia Build Against Illaoi
Mercury's Treads 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 Bloodletter's Curse, Rod of Ages and Liandry's Torment. This combination gives Cassiopeia an effective balance of damage, survivability, and utility for the matchup. 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
Cassiopeia25.0%Illaoi75.0%Cassiopeia50.0%Illaoi50.0%Illaoi dominates the early game (first 15 minutes) with a commanding 75.0% win rate — a 50.0 percentage point lead over Cassiopeia. This lopsided early game means Illaoi can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Late game (25+ minutes) is equally balanced, with Cassiopeia at 50.0% win rate — only 0.0 points ahead of Illaoi. Team fight execution and macro play determine the winner at this stage, not champion matchup advantage.
The power dynamics shift as the game progresses — Illaoi has the edge early, but Cassiopeia 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
Precision
Inspiration
The Precision and Inspiration 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 26.10. 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 |
|---|---|---|---|---|---|---|---|
| 46.55% | 58 | 6.4 | 823 | 11,864 | 63.6% | 36.1% | |
| 46.81% | 47 | 6.8 | 918 | 11,960 | 44.4% | 48.3% | |
| 51.06% | 47 | 6.5 | 746 | 11,163 | 57.1% | 46.1% | |
| 37.78% | 45 | 6.9 | 869 | 11,133 | 40.9% | 34.8% | |
| 53.49% | 43 | 6.6 | 805 | 10,958 | 56.5% | 50.0% | |
| 51.43% | 35 | 6.8 | 767 | 12,320 | 77.8% | 42.3% | |
| 26.47% | 34 | 6.2 | 767 | 11,334 | 15.4% | 33.3% | |
| 53.13% | 32 | 6.8 | 916 | 11,160 | 38.5% | 63.2% | |
| 70.97% | 31 | 6.8 | 902 | 13,393 | 63.6% | 75.0% | |
| 54.84% | 31 | 6.1 | 768 | 10,217 | 35.7% | 70.6% | |
| 40.00% | 30 | 6.2 | 700 | 11,380 | 44.4% | 38.1% | |
| 50.00% | 30 | 6.0 | 857 | 11,744 | 35.7% | 62.5% | |
| 55.56% | 27 | 6.5 | 776 | 11,552 | 36.4% | 68.8% | |
| 61.54% | 26 | 6.3 | 974 | 11,518 | 45.5% | 73.3% | |
| 61.54% | 26 | 6.2 | 835 | 10,709 | 72.7% | 53.3% | |
| 42.31% | 26 | 6.3 | 851 | 11,684 | 40.0% | 43.8% | |
| 37.50% | 24 | 6.5 | 826 | 11,344 | 25.0% | 43.8% | |
| 54.17% | 24 | 6.6 | 916 | 11,235 | 38.5% | 72.7% | |
| 45.83% | 24 | 6.8 | 698 | 11,753 | 40.0% | 50.0% | |
| 52.17% | 23 | 6.6 | 882 | 12,794 | 72.7% | 33.3% | |
| 43.48% | 23 | 6.6 | 683 | 10,320 | 50.0% | 36.4% | |
| 42.86% | 21 | 6.3 | 837 | 11,139 | 40.0% | 45.5% | |
| 28.57% | 21 | 6.4 | 944 | 12,064 | 10.0% | 45.5% | |
| 57.89% | 19 | 7.1 | 881 | 11,388 | 66.7% | 50.0% | |
| 52.63% | 19 | 7.3 | 801 | 11,762 | 70.0% | 33.3% | |
| 66.67% | 18 | 6.8 | 851 | 11,463 | 66.7% | 66.7% | |
| 50.00% | 18 | 6.7 | 693 | 11,025 | 33.3% | 66.7% | |
| 61.11% | 18 | 6.5 | 1,011 | 13,869 | 80.0% | 53.9% | |
| 68.75% | 16 | 6.8 | 915 | 12,424 | 66.7% | 70.0% | |
| 25.00% | 16 | 6.7 | 975 | 10,887 | 20.0% | 33.3% | |
| 40.00% | 15 | 6.4 | 812 | 12,482 | 40.0% | 40.0% | |
| 46.67% | 15 | 6.6 | 880 | 11,312 | 33.3% | 66.7% | |
| 53.33% | 15 | 7.0 | 758 | 10,331 | 75.0% | 28.6% | |
| 46.67% | 15 | 5.6 | 837 | 9,418 | 57.1% | 37.5% | |
| 60.00% | 15 | 6.7 | 775 | 11,889 | 50.0% | 66.7% | |
| 53.33% | 15 | 6.4 | 959 | 15,252 | 80.0% | 40.0% | |
| 42.86% | 14 | 6.5 | 843 | 14,399 | 60.0% | 33.3% | |
| 42.86% | 14 | 5.6 | 999 | 12,810 | 40.0% | 44.4% | |
| 57.14% | 14 | 6.8 | 745 | 10,704 | 66.7% | 40.0% | |
| 46.15% | 13 | 6.1 | 773 | 11,116 | 75.0% | 33.3% | |
| 46.15% | 13 | 6.2 | 752 | 13,065 | 25.0% | 55.6% | |
| 38.46% | 13 | 6.8 | 886 | 12,280 | 40.0% | 37.5% | |
| 38.46% | 13 | 6.5 | 871 | 12,229 | 25.0% | 44.4% | |
| 46.15% | 13 | 6.3 | 677 | 10,365 | 50.0% | 42.9% | |
| 33.33% | 12 | 6.5 | 846 | 11,525 | 40.0% | 28.6% | |
| 75.00% | 12 | 6.0 | 953 | 12,125 | 66.7% | 77.8% | |
| 33.33% | 12 | 7.1 | 886 | 13,281 | 33.3% | 33.3% | |
| 40.00% | 10 | 6.7 | 748 | 10,251 | 50.0% | 33.3% | |
| 70.00% | 10 | 6.2 | 760 | 13,234 | 66.7% | 71.4% | |
| 40.00% | 10 | 6.6 | 951 | 12,296 | 25.0% | 50.0% | |
| 30.00% | 10 | 5.0 | 771 | 9,954 | 20.0% | 40.0% | |
| 60.00% | 10 | 6.8 | 596 | 10,762 | 60.0% | 60.0% | |
| 33.33% | 9 | 6.6 | 664 | 9,943 | 40.0% | 25.0% | |
| 55.56% | 9 | 5.8 | 940 | 9,891 | 80.0% | 25.0% | |
| 55.56% | 9 | 6.2 | 643 | 12,386 | 75.0% | 40.0% | |
| 37.50% | 8 | 6.5 | 937 | 11,123 | 50.0% | 25.0% | |
| 75.00% | 8 | 6.8 | 692 | 12,901 | 66.7% | 80.0% | |
| 50.00% | 8 | 7.6 | 936 | 13,631 | 50.0% | 50.0% | |
| 62.50% | 8 | 5.0 | 738 | 12,673 | 100.0% | 57.1% | |
| 42.86% | 7 | 6.2 | 813 | 10,953 | 33.3% | 50.0% | |
| 42.86% | 7 | 6.7 | 950 | 9,396 | 50.0% | 33.3% | |
| 28.57% | 7 | 6.0 | 919 | 14,773 | 100.0% | 16.7% | |
| 42.86% | 7 | 6.5 | 844 | 13,416 | 100.0% | 33.3% | |
| 57.14% | 7 | 7.3 | 887 | 12,390 | 66.7% | 50.0% | |
| 57.14% | 7 | 6.7 | 837 | 13,612 | 66.7% | 50.0% | |
| 57.14% | 7 | 6.7 | 835 | 9,916 | 60.0% | 50.0% | |
| 42.86% | 7 | 4.7 | 751 | 11,302 | 0.0% | 50.0% | |
| 42.86% | 7 | 7.0 | 979 | 12,947 | 50.0% | 33.3% | |
| 50.00% | 6 | 8.5 | 729 | 11,198 | 75.0% | 0.0% | |
| 66.67% | 6 | 6.6 | 857 | 11,941 | 100.0% | 33.3% | |
| 50.00% | 6 | 5.4 | 1,106 | 10,452 | 66.7% | 33.3% | |
| 33.33% | 6 | 5.1 | 940 | 12,713 | 50.0% | 25.0% | |
| 50.00% | 6 | 6.4 | 683 | 10,567 | 50.0% | 50.0% | |
| 50.00% | 6 | 7.5 | 856 | 10,704 | 66.7% | 33.3% | |
| 50.00% | 6 | 6.0 | 1,003 | 11,645 | 66.7% | 33.3% | |
| 50.00% | 6 | 6.6 | 782 | 11,734 | 0.0% | 60.0% | |
| 50.00% | 6 | 6.8 | 800 | 10,458 | 50.0% | 50.0% | |
| 50.00% | 6 | 6.4 | 900 | 11,371 | 66.7% | 33.3% | |
| 80.00% | 5 | 5.9 | 1,142 | 10,330 | 100.0% | 75.0% | |
| 80.00% | 5 | 5.8 | 1,064 | 12,017 | 100.0% | 75.0% | |
| 20.00% | 5 | 5.8 | 686 | 8,918 | 25.0% | 0.0% | |
| 80.00% | 5 | 6.5 | 688 | 11,435 | 100.0% | 0.0% | |
| 40.00% | 5 | 7.1 | 937 | 13,629 | 33.3% | 50.0% | |
| 60.00% | 5 | 6.6 | 952 | 14,593 | 100.0% | 50.0% | |
| 60.00% | 5 | 6.2 | 629 | 10,932 | 0.0% | 100.0% | |
| 40.00% | 5 | 6.3 | 1,099 | 9,667 | 50.0% | 33.3% | |
| 20.00% | 5 | 3.5 | 543 | 6,595 | 25.0% | 0.0% | |
| 60.00% | 5 | 7.8 | 1,183 | 13,861 | 66.7% | 50.0% | |
| 60.00% | 5 | 7.7 | 977 | 11,450 | 100.0% | 33.3% | |
| 40.00% | 5 | 6.7 | 703 | 13,789 | 0.0% | 50.0% | |
| 40.00% | 5 | 6.7 | 827 | 11,932 | 50.0% | 33.3% | |
| 60.00% | 5 | 5.9 | 869 | 12,342 | 100.0% | 50.0% | |
| 60.00% | 5 | 7.4 | 798 | 12,165 | 50.0% | 66.7% | |
| 100.00% | 5 | 7.2 | 946 | 13,607 | 100.0% | 100.0% | |
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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 60.0% win rate compared to Cassiopeia's 40.0%, a 20.0 percentage point difference. This data is based on 10 recent ranked games in patch 26.10.
How does Cassiopeia do against Illaoi in the early game?
In the early game, Illaoi has the advantage against Cassiopeia with a 75.0% win rate versus 25.0%. Illaoi 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, Cassiopeia takes over the Cassiopeia vs Illaoi matchup with a 50.0% win rate compared to 50.0%. Cassiopeia 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 60.0% win rate in League of Legends patch 26.10. The 20.0 percentage point advantage means Illaoi is significantly favored in this lane matchup based on 10 games analyzed.
What is the best Cassiopeia build against Illaoi?
The best Cassiopeia build against Illaoi includes Bloodletter's Curse, Rod of Ages, Liandry's Torment with Mercury's Treads. 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 Inspiration 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 40.0% 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. Focus on safe farming — you outscale Illaoi in the late game. Use the matchup-specific build and runes above to optimize your chances.