Sionvs Cassiopeia
Sion vs Cassiopeia is a decisive matchup in LoL patch 26.14. Cassiopeia wins with a 57.1% win rate (+14.3%) over Sion based on 7 games. Cassiopeia wins the early laning phase while Sion scales better into the late game. Below you'll find the best Sion build, runes, laning stats, and strategies for the Sion vs Cassiopeia matchup.
Sion Matchup Breakdown
Use the dropdown to select an opponent and see a detailed breakdown of how Sion 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 Sion vs Cassiopeia Matchup?
Sion vs Cassiopeia Matchup Summary
The Sion vs Cassiopeia matchup is a decisive matchup in League of Legends ranked play. Based on 7 recent matches analyzed, Cassiopeia wins with a 57.1% win rate compared to Sion's 42.9%, giving Cassiopeia a 14.3 percentage point advantage. Game phase dynamics play a critical role here: Cassiopeia controls the early laning stage, but Sion outscales as the game goes longer. The matchup shifts dramatically depending on game length — Cassiopeia needs to press advantages before Sion reaches their power spikes, while Sion should focus on safe farming and hitting key item breakpoints. The most significant statistical gap is in sustain, where Sion leads by 2,493 HP/min — a difference that heavily influences the outcome of trades and skirmishes. Cassiopeia has a strong advantage in this matchup. Sion players should play defensively, prioritize safe farming under tower, and look for opportunities created by jungle pressure or Cassiopeia 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.
Sion vs Cassiopeia Laning Phase Breakdown
Sion is favored during the laning phase against Cassiopeia, winning 3 out of 5 key stat categories. Sion holds advantages in farming, gold income and sustain, making them the stronger laner in this matchup.
Best Sion Build Against Cassiopeia
Mercury's Treads is the optimal boots choice against Cassiopeia, providing the mobility and stats Sion needs most in this matchup. The top-performing core items for Sion against Cassiopeia are Titanic Hydra, Randuin's Omen and Kaenic Rookern. This combination gives Sion an effective balance of damage, survivability, and utility for the matchup. This build performs exceptionally well, achieving a 100.0% win rate across 1 games — well above average and making it the top item path against Cassiopeia. Adjustments may be needed based on team compositions and game state, but this build provides the strongest foundation for the Sion vs Cassiopeia matchup.
Early Game vs Late Game
Sion0.0%
Cassiopeia100.0%Sion60.0%Cassiopeia40.0%Cassiopeia dominates the early game (first 15 minutes) with a commanding 100.0% win rate — a 100.0 percentage point lead over Sion. This lopsided early game means Cassiopeia can dictate the pace of the lane from level 1, controlling trades, wave state, and river priority.
Sion is far superior in the late game (25+ minutes), boasting a 60.0% win rate — 20.0 points above Cassiopeia. Extended games heavily favor Sion, whose kit and scaling make them a dominant force in team fights and objective control.
This matchup features a dramatic power shift: Cassiopeia must aggressively press their early advantage and close out the game before Sion reaches their scaling breakpoints. If Sion survives the laning phase without falling too far behind, the matchup flips in their favor. Dragon and Rift Herald control are pivotal — the team that secures early objectives can snowball or buy time to scale.
Best Sion Runes Against Cassiopeia
Resolve
Inspiration
The Resolve and Inspiration rune setup gives Sion the best tools to compete against Cassiopeia in this difficult matchup, compensating for the statistical disadvantages with optimal rune synergies.
Sion matchup data for League of Legends patch 26.14. The table below shows Sion'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 Sion 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 |
|---|---|---|---|---|---|---|---|
| 53.68% | 95 | 6.9 | 775 | 13,303 | 69.6% | 48.6% | |
| 50.54% | 93 | 6.5 | 768 | 11,119 | 35.9% | 61.1% | |
| 41.89% | 74 | 6.4 | 711 | 11,100 | 51.7% | 35.6% | |
| 43.08% | 65 | 6.8 | 803 | 11,084 | 45.8% | 41.5% | |
| 41.27% | 63 | 6.2 | 861 | 11,320 | 52.9% | 37.0% | |
| 43.64% | 55 | 7.2 | 759 | 11,940 | 45.5% | 42.4% | |
| 47.17% | 53 | 6.5 | 760 | 10,716 | 50.0% | 44.8% | |
| 46.81% | 47 | 6.8 | 852 | 12,349 | 50.0% | 44.4% | |
| 55.56% | 45 | 6.0 | 973 | 10,733 | 55.6% | 55.6% | |
| 42.22% | 45 | 6.4 | 1,015 | 9,637 | 50.0% | 34.8% | |
| 53.49% | 43 | 6.5 | 674 | 10,507 | 60.0% | 47.8% | |
| 38.10% | 42 | 5.7 | 891 | 12,715 | 46.7% | 33.3% | |
| 50.00% | 40 | 6.6 | 859 | 11,904 | 60.0% | 44.0% | |
| 43.59% | 39 | 6.4 | 797 | 12,296 | 63.6% | 35.7% | |
| 56.41% | 39 | 6.8 | 983 | 12,587 | 53.3% | 58.3% | |
| 47.37% | 38 | 6.6 | 846 | 10,796 | 66.7% | 34.8% | |
| 52.63% | 38 | 6.7 | 815 | 12,264 | 50.0% | 54.5% | |
| 40.54% | 37 | 6.5 | 806 | 12,207 | 29.4% | 50.0% | |
| 64.86% | 37 | 6.8 | 857 | 11,850 | 61.1% | 68.4% | |
| 51.43% | 35 | 6.6 | 751 | 11,421 | 36.4% | 58.3% | |
| 44.12% | 34 | 6.4 | 753 | 10,662 | 37.5% | 50.0% | |
| 47.06% | 34 | 6.7 | 789 | 11,712 | 58.3% | 40.9% | |
| 36.36% | 33 | 6.2 | 632 | 10,942 | 46.7% | 27.8% | |
| 45.45% | 33 | 5.6 | 799 | 11,550 | 33.3% | 50.0% | |
| 57.58% | 33 | 6.4 | 713 | 10,939 | 64.3% | 52.6% | |
| 56.25% | 32 | 6.8 | 820 | 12,007 | 80.0% | 45.5% | |
| 40.63% | 32 | 6.6 | 723 | 12,354 | 16.7% | 46.1% | |
| 40.63% | 32 | 7.4 | 864 | 13,070 | 20.0% | 50.0% | |
| 56.67% | 30 | 6.4 | 883 | 13,473 | 66.7% | 52.4% | |
| 51.72% | 29 | 5.6 | 908 | 10,233 | 62.5% | 38.5% | |
| 59.26% | 27 | 6.3 | 711 | 11,939 | 70.0% | 52.9% | |
| 51.85% | 27 | 6.7 | 983 | 13,711 | 28.6% | 60.0% | |
| 42.31% | 26 | 6.1 | 898 | 11,928 | 50.0% | 38.9% | |
| 52.00% | 25 | 6.8 | 753 | 9,762 | 41.7% | 61.5% | |
| 54.17% | 24 | 5.8 | 1,025 | 10,547 | 45.5% | 61.5% | |
| 59.09% | 22 | 7.3 | 911 | 14,069 | 44.4% | 69.2% | |
| 50.00% | 22 | 7.2 | 647 | 10,641 | 37.5% | 57.1% | |
| 33.33% | 21 | 6.5 | 708 | 11,468 | 57.1% | 21.4% | |
| 57.14% | 21 | 6.3 | 759 | 10,670 | 40.0% | 72.7% | |
| 68.42% | 19 | 4.1 | 671 | 11,506 | 87.5% | 54.5% | |
| 57.89% | 19 | 2.7 | 574 | 9,346 | 80.0% | 33.3% | |
| 73.68% | 19 | 6.9 | 871 | 13,158 | 50.0% | 84.6% | |
| 73.68% | 19 | 6.1 | 730 | 9,062 | 100.0% | 28.6% | |
| 61.11% | 18 | 6.6 | 791 | 12,250 | 66.7% | 58.3% | |
| 47.06% | 17 | 6.6 | 821 | 12,618 | 66.7% | 42.9% | |
| 53.33% | 15 | 6.7 | 699 | 10,257 | 37.5% | 71.4% | |
| 60.00% | 15 | 6.1 | 824 | 12,735 | 60.0% | 60.0% | |
| 35.71% | 14 | 6.3 | 765 | 11,194 | 20.0% | 44.4% | |
| 50.00% | 14 | 4.0 | 734 | 12,369 | 50.0% | 50.0% | |
| 61.54% | 13 | 6.7 | 935 | 11,724 | 50.0% | 71.4% | |
| 61.54% | 13 | 2.1 | 616 | 12,341 | 80.0% | 50.0% | |
| 15.38% | 13 | 5.4 | 920 | 9,882 | 0.0% | 40.0% | |
| 61.54% | 13 | 6.6 | 878 | 12,698 | 50.0% | 66.7% | |
| 53.85% | 13 | 5.1 | 903 | 10,618 | 50.0% | 60.0% | |
| 50.00% | 12 | 3.8 | 882 | 11,695 | 75.0% | 37.5% | |
| 58.33% | 12 | 4.1 | 702 | 11,644 | 100.0% | 50.0% | |
| 41.67% | 12 | 3.6 | 806 | 12,167 | 60.0% | 28.6% | |
| 45.45% | 11 | 7.0 | 731 | 13,296 | 100.0% | 33.3% | |
| 36.36% | 11 | 5.4 | 894 | 13,076 | 25.0% | 42.9% | |
| 63.64% | 11 | 4.0 | 656 | 10,787 | 83.3% | 40.0% | |
| 45.45% | 11 | 5.8 | 642 | 12,254 | 40.0% | 50.0% | |
| 45.45% | 11 | 3.2 | 655 | 10,570 | 20.0% | 66.7% | |
| 70.00% | 10 | 2.1 | 652 | 12,524 | 100.0% | 57.1% | |
| 50.00% | 10 | 7.6 | 794 | 14,809 | 0.0% | 55.6% | |
| 30.00% | 10 | 3.4 | 569 | 11,044 | 25.0% | 33.3% | |
| 50.00% | 10 | 7.4 | 824 | 10,973 | 42.9% | 66.7% | |
| 33.33% | 9 | 6.6 | 725 | 10,846 | 50.0% | 20.0% | |
| 33.33% | 9 | 7.5 | 685 | 12,832 | 0.0% | 42.9% | |
| 44.44% | 9 | 7.7 | 730 | 11,761 | 60.0% | 25.0% | |
| 44.44% | 9 | 5.8 | 684 | 12,154 | 66.7% | 33.3% | |
| 11.11% | 9 | 5.5 | 563 | 11,411 | 0.0% | 12.5% | |
| 88.89% | 9 | 2.3 | 707 | 10,457 | 75.0% | 100.0% | |
| 33.33% | 9 | 6.1 | 850 | 11,151 | 25.0% | 40.0% | |
| 50.00% | 8 | 5.0 | 1,039 | 13,371 | 100.0% | 20.0% | |
| 50.00% | 8 | 6.8 | 804 | 13,608 | 0.0% | 57.1% | |
| 37.50% | 8 | 5.9 | 639 | 10,178 | 66.7% | 20.0% | |
| 87.50% | 8 | 4.8 | 905 | 14,344 | 50.0% | 100.0% | |
| 12.50% | 8 | 7.0 | 724 | 9,353 | 0.0% | 25.0% | |
| 37.50% | 8 | 5.8 | 826 | 14,692 | 50.0% | 33.3% | |
| 87.50% | 8 | 4.2 | 545 | 11,102 | 100.0% | 75.0% | |
| 62.50% | 8 | 4.2 | 917 | 10,609 | 75.0% | 50.0% | |
| 37.50% | 8 | 1.3 | 745 | 7,996 | 50.0% | 25.0% | |
| 75.00% | 8 | 7.6 | 770 | 12,428 | 50.0% | 100.0% | |
| 71.43% | 7 | 6.2 | 701 | 10,058 | 33.3% | 100.0% | |
| 14.29% | 7 | 4.1 | 758 | 14,716 | 0.0% | 20.0% | |
| 85.71% | 7 | 4.4 | 647 | 13,401 | 100.0% | 80.0% | |
| 42.86% | 7 | 5.8 | 675 | 12,797 | 33.3% | 50.0% | |
| 42.86% | 7 | 7.5 | 793 | 13,218 | 0.0% | 60.0% | |
| 71.43% | 7 | 4.0 | 763 | 14,115 | 0.0% | 71.4% | |
| 42.86% | 7 | 5.2 | 792 | 10,211 | 50.0% | 33.3% | |
| 57.14% | 7 | 2.8 | 781 | 14,558 | 50.0% | 60.0% | |
| 71.43% | 7 | 4.3 | 835 | 11,638 | 33.3% | 100.0% | |
| 42.86% | 7 | 2.5 | 939 | 11,160 | 66.7% | 25.0% | |
| 33.33% | 6 | 7.1 | 706 | 11,760 | 0.0% | 50.0% | |
| 50.00% | 6 | 3.2 | 809 | 13,741 | 100.0% | 40.0% | |
| 33.33% | 6 | 7.4 | 667 | 11,314 | 0.0% | 50.0% | |
| 66.67% | 6 | 6.5 | 789 | 14,555 | 100.0% | 50.0% | |
| 50.00% | 6 | 2.1 | 622 | 11,588 | 0.0% | 50.0% | |
| 66.67% | 6 | 6.5 | 771 | 13,926 | 100.0% | 50.0% | |
| 33.33% | 6 | 1.9 | 758 | 11,142 | 50.0% | 0.0% | |
| 50.00% | 6 | 5.7 | 919 | 12,212 | 66.7% | 33.3% | |
| 50.00% | 6 | 1.5 | 493 | 10,572 | 100.0% | 25.0% | |
| 40.00% | 5 | 5.5 | 939 | 11,785 | 0.0% | 66.7% | |
| 60.00% | 5 | 7.7 | 445 | 9,237 | 75.0% | 0.0% | |
| 20.00% | 5 | 3.7 | 525 | 9,209 | 0.0% | 50.0% | |
| 60.00% | 5 | 5.9 | 834 | 13,562 | 0.0% | 60.0% | |
| 80.00% | 5 | 4.2 | 757 | 8,296 | 75.0% | 100.0% | |
| 60.00% | 5 | 6.0 | 640 | 7,489 | 60.0% | 0.0% | |
| 40.00% | 5 | 8.1 | 772 | 12,121 | 33.3% | 50.0% | |
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Sion vs Cassiopeia - Frequently Asked Questions
How does Sion do against Cassiopeia in League of Legends?
Cassiopeia wins the Sion vs Cassiopeia matchup with a 57.1% win rate compared to Sion's 42.9%, a 14.3 percentage point difference. This data is based on 7 recent ranked games in patch 26.14.
How does Sion do against Cassiopeia in the early game?
In the early game, Cassiopeia has the advantage against Sion with a 100.0% win rate versus 0.0%. Cassiopeia players should look to press their lane advantage through aggressive trades and wave control during the first 15 minutes.
How does Sion do against Cassiopeia in the late game?
In the late game, Sion takes over the Sion vs Cassiopeia matchup with a 60.0% win rate compared to 40.0%. Sion scales better into team fights and objective contests after 25 minutes.
Who wins the Sion vs Cassiopeia matchup?
Cassiopeia wins the matchup against Sion with a 57.1% win rate in League of Legends patch 26.14. The 14.3 percentage point advantage means Cassiopeia is significantly favored in this lane matchup based on 7 games analyzed.
What is the best Sion build against Cassiopeia?
The best Sion build against Cassiopeia includes Titanic Hydra, Randuin's Omen, Kaenic Rookern with Mercury's Treads. 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 Sion runes against Cassiopeia?
The best Sion runes against Cassiopeia use the Resolve primary tree with Inspiration secondary. This rune setup achieves a 0.0% win rate in the Sion vs Cassiopeia matchup. See the full rune breakdown in the matchup comparison above.
Does Sion counter Cassiopeia?
No, Sion struggles against Cassiopeia with only a 42.9% win rate. Cassiopeia has the advantage in this matchup. Sion players should focus on safe farming and avoiding extended trades to minimize Cassiopeia's lead.
How do I play Sion against Cassiopeia?
When playing Sion against Cassiopeia, play cautiously and avoid Cassiopeia's power spikes. Focus on safe farming — you outscale Cassiopeia in the late game. Use the matchup-specific build and runes above to optimize your chances.