- Win Rate
- 44.6%
- Pick Rate
- 0.8%
- Ban Rate
- 0.7%
Cassiopeia Arena Build, Augments & Duos
- Patch
- 26.20
- Games
- 1,638
- Lane
- All Lanes
- Tier
- All Tiers
- Last Updated
- Oct 17, 2026 UTC
- Methodology
- Data Methodology
- Author
- Dakota Chinnick
Patch 26.20 Cassiopeia arena mode stats show Cassiopeia with a 17.6% win rate and a 3.32 average placement in arena mode. Discover Cassiopeia's best duo partners, augments, and arena builds to dominate the meta.
Cassiopeia Arena Performance
Cassiopeia B TierCombat Stats
Cassiopeia Top Arena Partners in Patch 16.20
Discover the highest performing Arena augments for Cassiopeia in League of Legends Patch 16.20. The strongest augment choices include Magic Missile, Spellwake, Jeweled Gauntlet, which provide significant advantages in 3v3v3v3v3v3 combat. When offered Prismatic augments, prioritize Spellwake. For Gold augments, Magic Missile synergizes well with Cassiopeia's kit. Use the rarity filters below to find the best Silver, Gold, and Prismatic augments for your Cassiopeia Arena games.
Hitting enemies with Abilities creates a blast that deals magic damage from you to the location you hit them.
Your Abilities can Critically Strike. Gain ?% Crit Chance.
At the start of each round, gain 1 Shield for every 1 Ability Power.
Increase the damage done by your augments and items by ?.
Your Abilities apply an infinitely stacking Burn, dealing magic damage over time.Your Burn effects reduce your basic Ability Cooldowns.
Hitting an enemy champion with an ability hits grant you permanent Cursed Power. Gain Adaptive Force based on your Cursed Power.
Become tiny, gain Move Speed, and bonus damage to champions based on how much larger they are than you.
Gain Ability Haste equal to 20% Ability Power.
Dealing damage with an Ability fires 3 magic missiles, each dealing percent max Health true damage.
Permanently gain 1 Ability Power when you hit an enemy with an Ability.If taken after round 4, gain 40 Ability Power.
Gain a random Prismatic Augment.
Your Mana costs are doubled. Your Ability Heals, Shields, and damage are increased based on your max Mana.
Convert Bonus Attack Damage to Ability Power. Gain 15% Ability Power.
Gain 60 Ability Power.
Increase future augment offerings by 1 tier. If the augments were already Prismatic tier, gain a bonus 750 gold.
Immediate: Gain Needlessly Large Rod.Requirement: Possess Rabadon's Deathcap and Zhonya's Hourglass.Reward: Gain Wooglet's Witchcap.
Your Item and damage over time effects can Critically Strike. Gain 25% Crit chance.
Increase max Health by half of your Mana.
Find the best 3v3 teammate champions to pair with Cassiopeia in League of Legends Arena mode. The strongest duo partner is Amumu, achieving a 26.2% win rate and 2.9 average placement when paired together. Other high-synergy partners include Twitch and Teemo, both offering improved placement rates compared to Cassiopeia's solo average of 3.3. 11 champions boost Cassiopeia's win rate above their baseline 17.6%. Compare win rates, top 2 rates, top 4 rates, and placement differences to find your ideal Arena duo composition.
Partner | Tier | Win Rate | WR Diff | Top 2 | Top 4 | Avg Place | Place Diff | Matches |
|---|---|---|---|---|---|---|---|---|
 Amumu | S Tier | 26.2% | +8.6% | 50.0% | 78.6% | 2.9 | +0.5 | 84 |
 Twitch | A Tier | 25.5% | +8.0% | 46.8% | 76.6% | 3.1 | +0.3 | 94 |
 Teemo | D Tier | 15.3% | -2.3% | 35.6% | 83.0% | 3.1 | +0.3 | 118 |
 Swain | A Tier | 23.1% | +5.5% | 35.9% | 76.9% | 3.1 | +0.2 | 78 |
 Malzahar | B Tier | 22.2% | +4.6% | 36.1% | 75.0% | 3.1 | +0.2 | 72 |
 Sett | A Tier | 25.4% | +7.9% | 41.8% | 72.7% | 3.1 | +0.2 | 110 |
 Volibear | D Tier | 13.3% | -4.2% | 40.0% | 82.2% | 3.1 | +0.2 | 90 |
 Ashe | B Tier | 20.9% | +3.4% | 41.9% | 74.4% | 3.1 | +0.2 | 86 |
 Leona | D Tier | 13.5% | -4.1% | 40.5% | 73.0% | 3.2 | +0.1 | 74 |
 Blitzcrank | D Tier | 15.0% | -2.6% | 37.5% | 75.0% | 3.3 | +0.0 | 80 |
Optimize your Cassiopeia Arena itemization with the highest win rate builds for Patch 16.20. The top-performing build features Pyromancer's Cloak, Liandry's Anguish, Morellonomicon as core items, achieving a 40.0% win rate and 1.8 average placement. The top 3 builds average 45.7% win rate, significantly impacting your Arena success. Each build shows core items, situational options, win rate compared to Cassiopeia's baseline, and top 4 placement rates to help you climb in Arena ranked.
Rank | Core Items | Situational | Boots | Tier | Win Rate | WR Diff | Top 2 | Top 4 | Avg Place | Matches |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |    |   | - | A Tier | 40.0% | +22.4% | 80.0% | 100.0% | 1.8 | 5 |
| 2 |    |  |  | S Tier | 57.1% | +39.6% | 71.4% | 100.0% | 1.9 | 7 |
| 3 |   |  | | S Tier | 40.0% | +22.4% | 60.0% | 100.0% | 2.2 | 5 |
| 4 |   |   | | S Tier | 40.0% | +22.4% | 60.0% | 100.0% | 2.4 | 5 |
| 5 |  | | - | S Tier | 40.0% | +22.4% | 60.0% | 80.0% | 2.4 | 5 |
Plan your Cassiopeia Arena run
Arena Companion shows each champion's placement rates and stats, the best augments for them, a slot-by-slot augment planner, and the strongest duos and teams this patch.
- Placement rates & stats
- Augment slot planner
- Best duos & teams
Is Cassiopeia Good in Arena Mode?
Cassiopeia is currently rated as an B-tier champion in League of Legends Arena mode for Patch 16.20, making them a reliable option in the 3v3v3v3v3v3 format. With a 17.6% win rate (1st place finishes) and a 71.8% top 4 rate, Cassiopeia performs above the expected average in the current Arena meta.
Cassiopeia Arena Performance Analysis
In Arena's unique 3v3v3v3v3v3 format, Cassiopeia averages a 3.3 placement across 2,168 analyzed matches. This aggressive damage dealer playstyle allows Cassiopeia to deal significant damage, ranking in the top 29% of all Arena champions for damage output.
The 36.5% top 2 rate indicates consistent high placements and strong late-game scaling. Players looking to climb Arena ranked should capitalize on Cassiopeia's strengths to maximize placement consistency.
Best Champions to Pair with Cassiopeia
Duo composition is critical in Arena, and Cassiopeia synergizes exceptionally well with Amumu, achieving a combined 26.2% win rate and 2.9 average placement. This pairing improves Cassiopeia's baseline performance by +8.6%.
Other strong duo partners include Twitch (25.5% win rate) and Teemo (15.3% win rate). Cassiopeia has excellent duo flexibility with 11+ partners that boost win rate above baseline.
Cassiopeia Augment Priority Guide
Augment selection can make or break your Arena run. For Cassiopeia, the highest-performing augment is Magic Missile, which players select in 27.9% of games.
When offered Prismatic augments, prioritize Spellwake for maximum impact. Gold augments like Magic Missile provide consistent value throughout the game. Use the augment tier list above to identify which augments to prioritize during each selection round.
Optimal Cassiopeia Arena Build Path
The highest win rate build for Cassiopeia in Arena features Pyromancer's Cloak, Liandry's Anguish, Morellonomicon as core items, achieving a 40.0% win rate.
Arena's accelerated gold income means reaching full build faster than Summoner's Rift. Focus on completing core items before branching into situational options. The builds listed above are sorted by average placement, helping you identify which item combinations lead to the highest finishes in the current patch.
Tips for Playing Cassiopeia in Arena
Coordinate with your partner to cover Cassiopeia's weaknesses. Consider a tanky partner to create space for your damage.
Prioritize S-tier and A-tier augments when offered. Cassiopeia's 71.8% top 4 rate can be improved significantly with optimal augment selection each round.
Leverage Cassiopeia's high damage output to eliminate threats quickly. Focus priority targets while your partner provides support.
Final Verdict: Should You Play Cassiopeia in Arena?
Cassiopeia is a solid choice in Arena that can perform well with the right partner and augment combinations. While not top-tier, dedicated Cassiopeia players can achieve consistent placements by following optimal builds and duo strategies. The 71.8% top 4 rate shows potential for solid finishes.
This data is updated regularly for Patch 16.20. Check back after each patch to see how balance changes affect Cassiopeia's Arena performance. For the most accurate results, we analyze 2,168 matches to provide reliable statistics and recommendations.
Help us maintain accuracy! If you notice incorrect stats, missing data, or any issues, your feedback directly improves the quality of our data for the entire community.
Cassiopeia Arena FAQ - Patch 16.20
Is Cassiopeia good in Arena mode?
Cassiopeia is currently a B-tier champion in Arena mode with a 17.6% win rate and 71.8% top 4 rate. Cassiopeia is a viable pick that can perform well with the right partner and augments.
What is the best duo partner for Cassiopeia in Arena?
The best duo partner for Cassiopeia in Arena is Amumu, achieving a 26.2% win rate and 2.9 average placement together. Other strong partners include Twitch and Teemo.
What are the best augments for Cassiopeia in Arena?
The highest-performing augment for Cassiopeia is Magic Missile with a 27.9% pick rate. Prioritize Prismatic and Gold augments that synergize with Cassiopeia's kit.
What is the best build for Cassiopeia in Arena?
The highest win rate build for Cassiopeia in Arena includes Pyromancer's Cloak, Liandry's Anguish, Morellonomicon as core items, achieving a 40.0% win rate. Arena's accelerated gold income allows you to complete builds faster than Summoner's Rift.
What is Cassiopeia's win rate in Arena?
Cassiopeia has a 17.6% win rate (1st place) in Arena mode for Patch 16.20. The top 2 rate is 36.5% and top 4 rate is 71.8%, with an average placement of 3.3 across 2,168 analyzed matches.
What tier is Cassiopeia in Arena?
Cassiopeia is rated as B-tier in Arena mode for Patch 16.20. B-tier champions are solid choices that can succeed with good execution. Tiers are calculated based on win rate, top 4 rate, and average placement.
How do I play Cassiopeia in Arena?
To play Cassiopeia effectively in Arena: 1) Partner with Amumu for best results. 2) Prioritize Magic Missile when offered. 3) Build Pyromancer's Cloak early for power spikes. 4) Focus on dealing damage to priority targets while your partner provides support.
What are Cassiopeia's best and worst matchups in Arena?
Cassiopeia's performance varies significantly based on duo partner selection. Pairing with Amumu improves win rate to 26.2%. The key to success is choosing partners that complement Cassiopeia's high damage output and selecting augments that enhance your duo composition.