Mid Matchup

Cassiopeia vs Ahri

Patch: 15.18 (25.18)
League: Platinum+
Cassiopeia

Cassiopeia

the Serpent's Embrace
Mid
Cassiopeia Mid Overall Win Rate
51.46%

Matchup Win Rate

51.4%
Cassiopeia vs Ahri Wins
⚔
48.6%
Ahri vs Cassiopeia Wins
Ahri

Ahri

the Nine-Tailed Fox
Mid
Ahri Mid Overall Win Rate
50.09%

Cassiopeia vs Ahri - Mid Matchup Guide Patch 15.18 (25.18)

Cassiopeia Mid vs Ahri Mid - Who is stronger?

Cassiopeia Mid has a slight edge over Ahri (51.4% win rate) based on 535 games. The matchup slightly favors Cassiopeia.

View detailed statistics below: items, runes, and counter builds for Cassiopeia Mid vs Ahri Mid in patch 15.18 (25.18), including win rates and pick rates. With proper study, this can improve your chances of victory up to 60.5% in this matchup.

Statistical Matchup Analysis

With 1.2% popularity, Cassiopeia constantly encounters meta-dominant Ahri (8.0%, 2nd place out of 61 Mid champions). Understanding how to play against this popular champion becomes essential for consistent Cassiopeia performance in the current patch. Even tiers, uneven results: Both champions sit at B+-tier, but Cassiopeia claims a meaningful 51.4% vs 48.6% advantage. Cassiopeia's kit synergizes better in this specific head-to-head matchup. Optimize for consistency: Conqueror paired with Presence of Mind (49.6% win rate, 68.7% popularity) provides the stats you need, while the item sequence Rod of Ages > Archangel's Staff > Rylai's Crystal Scepter with delivers 60.5% win rate against Ahri.

Lane dominance: Cassiopeia not only wins the matchup but crushes CS (7.28/min vs 6.04 for Ahri). This 1.24 CS/min advantage generates significant gold leads that compound your already favorable position. Quality over quantity: Cassiopeia wins through smart play rather than raw damage - despite lower DPS (816 vs 839/min), the 51.4% win rate shows superior utility, positioning, and team fight impact. Intriguing anomaly: Cassiopeia wins the matchup (51.4%) despite a lower KDA (2.00 vs 2.50). This suggests you win through macro influence and clutch plays in key moments rather than consistent individual performance.

Cassiopeia vs Ahri - Mid Stats Comparison

Cassiopeia Mid
Cassiopeia Mid		Versus
Ahri Mid
Ahri Mid
B+TierB+
51.4%Matchup Winrate48.6%
51.46%Role Winrate50.09%
#20Winrate Rank#41
1.2%Pickrate8.0%
2.0Average KDA2.5
402Gold per Minute403
7.28CS/Min6.04
0.31Wards per Minute0.37
816Damage per Minute839

How to Beat Ahri as Cassiopeia (Mid)

While statistically Cassiopeia is slightly stronger than Ahri in the mid lane, neither champion has an overwhelming advantage in this matchup. The winner is determined by player skill and understanding the intricacies of the confrontation. Studying this guide will improve your chances of success.

The magic damage that Cassiopeia deals remains relevant in the late game. Look for opportunities to initiate or counter-initiate. Ahri has mixed damage, be careful as it may be harder to defend if the opponent gets ahead or plays aggressively.

An important advantage of Cassiopeia is higher farming statistics (ranked 10th among role champions) (versus 47th for Ahri), which provides a stable gold advantage in extended games and allows faster access to key items. Meanwhile, their higher KDA (2.5 versus 2.0) suggests they participate more effectively in team fights.

Key aspects of the Cassiopeia Mid versus Ahri Mid matchup

Despite the statistical advantage in the matchup, overconfidence can be the main mistake. It is important for the Cassiopeia player to maintain constant pressure on Ahri, not allowing the opponent to safely scale up, and actively use the advantage gained to help their team.

Cassiopeia vs Ahri: Mid Lane Summoner Spells

Most Popular

Flash
Flash Teleports you a short distance toward your cursor.
Ignite
Ignite Deals true damage over time to target enemy champion and reduces healing effects on them for the duration.
58.4% Win Rate6.8% Pick Rate

Highest Win Rate

Flash
Flash Teleports you a short distance toward your cursor.
Ignite
Ignite Deals true damage over time to target enemy champion and reduces healing effects on them for the duration.
58.4% Win Rate6.8% Pick Rate

Cassiopeia vs Ahri: Mid Lane Runes

Most Frequent Runes

Primary Path
Precision
Conqueror
Conqueror Basic attacks or spells that deal damage to an enemy champion grant 2 stacks of Conqueror for 5s, gaining 1.8-4 Adaptive Force per stack. Stacks up to 12 times. Ranged champions gain only 1 stack per basic attack.

When fully stacked, heal for 8% of the damage you deal to champions (5% for ranged champions).

Conqueror

Basic attacks or spells that deal damage to an enemy champion grant 2 stacks of Conqueror…

Presence of Mind
Presence of Mind Damaging an enemy champion restores 6-50 (80% for ranged) mana or 6 energy.

Takedowns restore 15% of your maximum mana or energy.

Cooldown for damage restoration: 8s

Presence of Mind

Damaging an enemy champion restores 6-50 (80% for ranged) mana or 6 energy.Take…

Legend: Haste
Legend: Haste Gain 1.5 basic ability haste for every Legend stack (max 10 stacks).

Earn progress toward Legend stacks for every champion takedown, epic monster takedown, large monster kill, and minion kill.

Legend: Haste

Gain 1.5 basic ability haste for every Legend stack (max 10 stacks).Earn progre…

Last Stand
Last Stand Deal 5% - 11% increased damage to champions while you are below 60% health. Max damage gained at 30% health.

Last Stand

Deal 5% - 11% increased damage to champions while you are below 60% health. Max…

Secondary Path
Sorcery
Manaflow Band
Manaflow Band Hitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana.

After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds.

Cooldown: 15 seconds

Manaflow Band

Hitting an enemy champion with an ability permanently increases your maximum ma…

Transcendence
Transcendence Gain bonuses upon reaching the following levels:
Level 5: +5 Ability Haste
Level 8: +5 Ability Haste
Level 11: On Champion takedown, reduce the remaining cooldown of basic abilities by 20%.

Transcendence

Gain bonuses upon reaching the following levels:Level 5: +5 Ability Haste Level…

Adaptive
Adaptive Force
Adaptive Force Grants 9 Attack Damage or 9 Ability Power

Adaptive Force

Grants 9 Attack Damage or 9 Ability Power

Adaptive Force
Adaptive Force Grants 9 Attack Damage or 9 Ability Power

Adaptive Force

Grants 9 Attack Damage or 9 Ability Power

Scaling Health
Scaling Health Increases health from 10 to 180 HP across levels 1-18

Scaling Health

Increases health from 10 to 180 HP across levels 1-18

49.6% Win Rate68.7% Pick Rate

Best Win Rate Runes

Primary Path
Precision
Conqueror
Conqueror Basic attacks or spells that deal damage to an enemy champion grant 2 stacks of Conqueror for 5s, gaining 1.8-4 Adaptive Force per stack. Stacks up to 12 times. Ranged champions gain only 1 stack per basic attack.

When fully stacked, heal for 8% of the damage you deal to champions (5% for ranged champions).

Conqueror

Basic attacks or spells that deal damage to an enemy champion grant 2 stacks of Conqueror…

Presence of Mind
Presence of Mind Damaging an enemy champion restores 6-50 (80% for ranged) mana or 6 energy.

Takedowns restore 15% of your maximum mana or energy.

Cooldown for damage restoration: 8s

Presence of Mind

Damaging an enemy champion restores 6-50 (80% for ranged) mana or 6 energy.Take…

Legend: Haste
Legend: Haste Gain 1.5 basic ability haste for every Legend stack (max 10 stacks).

Earn progress toward Legend stacks for every champion takedown, epic monster takedown, large monster kill, and minion kill.

Legend: Haste

Gain 1.5 basic ability haste for every Legend stack (max 10 stacks).Earn progre…

Last Stand
Last Stand Deal 5% - 11% increased damage to champions while you are below 60% health. Max damage gained at 30% health.

Last Stand

Deal 5% - 11% increased damage to champions while you are below 60% health. Max…

Secondary Path
Sorcery
Manaflow Band
Manaflow Band Hitting an enemy champion with an ability permanently increases your maximum mana by 25, up to 250 mana.

After reaching 250 bonus mana, restore 1% of your missing mana every 5 seconds.

Cooldown: 15 seconds

Manaflow Band

Hitting an enemy champion with an ability permanently increases your maximum ma…

Transcendence
Transcendence Gain bonuses upon reaching the following levels:
Level 5: +5 Ability Haste
Level 8: +5 Ability Haste
Level 11: On Champion takedown, reduce the remaining cooldown of basic abilities by 20%.

Transcendence

Gain bonuses upon reaching the following levels:Level 5: +5 Ability Haste Level…

Adaptive
Adaptive Force
Adaptive Force Grants 9 Attack Damage or 9 Ability Power

Adaptive Force

Grants 9 Attack Damage or 9 Ability Power

Adaptive Force
Adaptive Force Grants 9 Attack Damage or 9 Ability Power

Adaptive Force

Grants 9 Attack Damage or 9 Ability Power

Scaling Health
Scaling Health Increases health from 10 to 180 HP across levels 1-18

Scaling Health

Increases health from 10 to 180 HP across levels 1-18

49.6% Win Rate68.7% Pick Rate

Cassiopeia vs Ahri: Mid Lane Item Builds

Most Popular Build

Starting Items
Stealth Ward
Stealth Ward (0 gold) Active (210 - 120s, max 2 charges)
Places an Invisible Stealth Ward that grants vision for 90-120 seconds.
Doran's Ring
Doran's Ring (400 gold) 18 Ability Power
90 Health
Restoration
Restore 1.25 Mana every second. If you can't gain Mana, restore 0.55 Health instead.
Helping Hand
Attacks deal 5 bonus physical damage to minions.
Health Potion
Health Potion (50 gold) Consume
Restores 120 Health over 15 seconds.
52.8% Win Rate29.5% Pick Rate
Popular Boots
Core Build
Catalyst of Aeons
Catalyst of Aeons (1300 gold) 350 Health
375 Mana
Eternity
Restores 10% of the damage taken from champions as Mana.
Casting an Ability heals for 25% of Mana spent.
->
Rod of Ages
Rod of Ages (2600 gold) 50 Ability Power
400 Health
400 Mana
Timeless
This item gains 10 Health, 20 Mana and 3 Ability Power every 60 seconds up to 10 times. Upon reaching max stacks, gain a level.
Eternity
Taking damage from champions restores 10% of the damage as Mana.
Casting an ability heals for 25% of Mana spent.
Archangel's Staff
Archangel's Staff (2900 gold) 70 Ability Power
600 Mana
25 Ability Haste
Awe
Gain Ability Power equal to 1% bonus Mana.
Manaflow (8s, max 5 charges)
Landing Abilities grants 5 max Mana (doubled vs. champions).
Transforms into Seraph's Embrace at 360 max Mana.
Rylai's Crystal Scepter
Rylai's Crystal Scepter (2600 gold) 65 Ability Power
400 Health
Rimefrost
Damaging Abilities Slow enemies by 30% for 1 second.
50.5% Win Rate19.6% Pick Rate
Final Build
Zhonya's Hourglass
Zhonya's Hourglass (3250 gold) 105 Ability Power
50 Armor

Time Stop
Enter Stasis for 2.5 seconds.
50.1% Win Rate31.0% Pick Rate

Best Win Rate Build

Starting Items
Stealth Ward
Stealth Ward (0 gold) Active (210 - 120s, max 2 charges)
Places an Invisible Stealth Ward that grants vision for 90-120 seconds.
Doran's Ring
Doran's Ring (400 gold) 18 Ability Power
90 Health
Restoration
Restore 1.25 Mana every second. If you can't gain Mana, restore 0.55 Health instead.
Helping Hand
Attacks deal 5 bonus physical damage to minions.
Health Potion
Health Potion (50 gold) Consume
Restores 120 Health over 15 seconds.
52.8% Win Rate29.5% Pick Rate
Highest Winrate Boots
Core Build
Lost Chapter
Lost Chapter (1200 gold) 40 Ability Power
300 Mana
10 Ability Haste
Enlighten
Levelling up restores 20% max Mana over 3 seconds.
->
Rod of Ages
Rod of Ages (2600 gold) 50 Ability Power
400 Health
400 Mana
Timeless
This item gains 10 Health, 20 Mana and 3 Ability Power every 60 seconds up to 10 times. Upon reaching max stacks, gain a level.
Eternity
Taking damage from champions restores 10% of the damage as Mana.
Casting an ability heals for 25% of Mana spent.
Archangel's Staff
Archangel's Staff (2900 gold) 70 Ability Power
600 Mana
25 Ability Haste
Awe
Gain Ability Power equal to 1% bonus Mana.
Manaflow (8s, max 5 charges)
Landing Abilities grants 5 max Mana (doubled vs. champions).
Transforms into Seraph's Embrace at 360 max Mana.
Rylai's Crystal Scepter
Rylai's Crystal Scepter (2600 gold) 65 Ability Power
400 Health
Rimefrost
Damaging Abilities Slow enemies by 30% for 1 second.
60.5% Win Rate4.4% Pick Rate
Final Build
Riftmaker
Riftmaker (3100 gold) 70 Ability Power
350 Health
15 Ability Haste
Void Corruption
For each second in combat with enemy champions, deal 2% bonus damage, up to 8%. At maximum strength, gain Omnivamp.
Void Infusion
Gain 2% of your bonus Health as Ability Power.
65.8% Win Rate4.0% Pick Rate
Other Items
Rabadon's Deathcap
Rabadon's Deathcap (3600 gold) 130 Ability Power
Magical Opus
Increases your total Ability Power by 30%.
51.1% Win Rate24.7% Pick Rate
Void Staff
Void Staff (3000 gold) 95 Ability Power
40% Magic Penetration
48.1% Win Rate13.8% Pick Rate
Cosmic Drive
Cosmic Drive (3000 gold) 70 Ability Power
350 Health
25 Ability Haste
4% Move Speed
Spelldance
Dealing magic or true damage to champions grants Move Speed for 4 seconds.
49.7% Win Rate12.6% Pick Rate
Liandry's Torment
Liandry's Torment (3000 gold) 70 Ability Power
300 Health
Torment
Damaging Abilities burn enemies for 2% max Health magic damage per second for 3 seconds.
Suffering
For each second in combat with enemy champions, deal 2% bonus damage, up to 6%.
56.6% Win Rate12.5% Pick Rate
Morellonomicon
Morellonomicon (2950 gold) 75 Ability Power
350 Health
15 Ability Haste
Grievous Wounds
Dealing magic damage to champions applies 40% Wounds for 3 seconds.
55.2% Win Rate6.4% Pick Rate
Banshee's Veil
Banshee's Veil (3000 gold) 105 Ability Power
40 Magic Resist
Annul
Grants a Spell Shield that blocks the next enemy Ability.
58.6% Win Rate5.2% Pick Rate
Bloodletter's Curse
Bloodletter's Curse (2900 gold) 60 Ability Power
350 Health
15 Ability Haste
Vile Decay
Dealing magic damage with abilities or passives to champions reduces their Magic Resist by 5% for 6 seconds, up to 30%.
62.1% Win Rate4.1% Pick Rate

Cassiopeia vs Ahri: Mid Lane Skill (abilities) Orders

Most Frequent Skill Order

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Q
Q
Noxious Blast Cassiopeia blasts an area with Poison after a brief delay, granting her increased Move Speed if she hits an enemy champion.
Q
Q
Q
Q
Q
W
W
Miasma Cassiopeia releases several clouds of poison, slowing, grounding, and lightly damaging enemies that pass through them. Grounded enemies cannot use Movement abilities.
W
W
W
W
W
E
E
Twin Fang Cassiopeia lets loose an attack that deals increased damage to Poisoned targets and heals her for a percentage of the damage dealt. If the target dies from this attack, Cassiopeia regains Mana.
E
E
E
E
E
R
R
Petrifying Gaze Cassiopeia releases a swirl of magical energy from her eyes, stunning any enemies in front of her that are facing her and slowing any others with their back turned.
R
R
R
Max Order: E > Q > W
49.5% Win Rate52.1% Pick Rate

Highest Win % Skill Order

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
R
Q
Noxious Blast Cassiopeia blasts an area with Poison after a brief delay, granting her increased Move Speed if she hits an enemy champion.
Q
Q
Q
Q
Q
R
W
Miasma Cassiopeia releases several clouds of poison, slowing, grounding, and lightly damaging enemies that pass through them. Grounded enemies cannot use Movement abilities.
W
W
W
W
W
R
E
Twin Fang Cassiopeia lets loose an attack that deals increased damage to Poisoned targets and heals her for a percentage of the damage dealt. If the target dies from this attack, Cassiopeia regains Mana.
E
E
E
E
E
R
R
Petrifying Gaze Cassiopeia releases a swirl of magical energy from her eyes, stunning any enemies in front of her that are facing her and slowing any others with their back turned.
R
R
R
Max Order: E > Q > W
62.2% Win Rate0.8% Pick Rate

Cassiopeia tips:

  • Use Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze for maximum damage.
  • Lead your enemy when targeting with Noxious Blast to ensure the hit.

Playing Against Ahri

  • Ahri's survivability is dramatically reduced when her Ultimate, Spirit Rush, is down.
  • Stay behind minions to make Charm difficult to land, this will reduce Ahri's damage potential significantly.

Cassiopeia Mid other Matchups

Cassiopeia
+1.0%
Sylas

Cassiopeia vs Sylas