Patch 26.9 Data
Champion Matchups
Pick two champions and see who wins. Win rates, counters, and tips powered by live ranked data.
Champion 1
Cassiopeia
VS
Champion 2
Kassadin
vs

54.9%
Cassiopeia win rate vs Kassadin
Cassiopeia has the edge
133
Games Analyzed
54.9%
Cassiopeia WR
45.1%
Kassadin WR
+391
Avg Gold Diff @15
Cassiopeia
DamageAP
StyleSustained
RangeRanged
Difficulty****-
StrongLate game
RunesConqueror / Resolve
SummsFlash + Teleport
Kassadin
DamageAP
StyleBurst
RangeMelee
Difficulty***--
StrongLate game
RunesFleet Footwork / Resolve
SummsFlash + Teleport
Power Spike Timeline
Cassiopeia
Level 2
Cassiopeia
Level 6
Kassadin
Level 6
Kassadin
Level 11
Kassadin
Level 16
Cassiopeia
2 items
How to Play This Matchup
Power Curve
Cassiopeia is strongest late game while Kassadin peaks late game. Play around your power window.
MR Priority
Both deal magic damage. An early Null-Magic Mantle or Mercury's Treads can swing the lane. Hexdrinker is also an option for AD champs.
Sustained vs Burst
Kassadin wants to combo and disengage. Cassiopeia wins extended trades. Don't let Kassadin get a clean rotation  force long fights where sustain wins.
Range Advantage
Cassiopeia has range advantage. Kassadin should look for short trades when Cassiopeia uses abilities on the wave. Freeze near your tower and wait for jungle help or an all-in window.
Exploit Kassadin's Weakness
Kassadin's main weakness: Early game extremely weak, AD matchups, CC. Play around this to maximize your advantage.
Cassiopeia Win Condition
E spam DPS, R stun if facing, no boots = more AP
Kassadin Win Condition
Survive to 16, R spam becomes uncatchable assassin
Recommended Items
Cassiopeia
Archangel's Staff
Core
Build every game

Liandry's Anguish
Core
Build every game

Rabadon's
Core
Build every game

Mercury's Treads
Defensive
MR + tenacity vs Kassadin's AP damage and CC

Banshee's Veil
Counter
Spell shield blocks Kassadin's engage tool

Zhonya's Hourglass
Counter
Stasis to survive assassin burst
Kassadin
Rod of Ages
Core
Build every game
Archangel's Staff
Core
Build every game

Rabadon's
Core
Build every game

Mercury's Treads
Defensive
MR + tenacity vs Cassiopeia's AP damage and CC

Banshee's Veil
Counter
Spell shield blocks Cassiopeia's engage tool
Cassiopeia's Worst Matchups
Kassadin's Worst Matchups
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