Matchup

Udyr
Udyr
67%
33%

vs

51.4%

over 35 games

Cassiopeia
Cassiopeia
18%
82%
Heavy AP damageSustained DPSHeavy CC

Skill matchup

Build vs Cassiopeia

Build adapted to this matchup

Starting items

Doran's Ring
Health Potion
x2

Core build

Tear of the Goddess
1
Ravenous Hydra
2DPS
Spirit Visage
3vs AP

Standard

Boots of Swiftness
4vs Slow
Liandry's Torment
5Mage tank

Summoner spells

41234%
41434%

Anti AD

Plated Steelcaps
4vs AD
Randuin's Omen
5vs AD

Anti AP

Mercury's Treads
4vs CC
Force of Nature
5vs AP
Maw of Malmortius
vs AP

Anti Tank

Shadowflame
5vs Tank

DPS

Liandry's Torment
Mage tank
Riftmaker
Mage tank
Stridebreaker
Bruiser
Spear of Shojin
Bruiser
Trinity Force
DPS
Hextech Rocketbelt
Mage tank
Malignance
Mage
Rabadon's Deathcap
Mage
Cosmic Drive
Mage tank

Other options

Dark Seal
Oblivion Orb
Fimbulwinter
Survival
Jak'Sho, The Protean
vs Hybride
100.0% WR1 games
ResolveResolve
Grasp of the UndyingGrasp of the Undying
Shield BashShield Bash
Second WindSecond Wind
RevitalizeRevitalize
InspirationInspiration
Biscuit DeliveryBiscuit Delivery
Approach VelocityApproach Velocity
Adaptive ForceAdaptive ForceHealth

Power Spikes

Strength by game phase

Early (0-15)
Mid (15-30)
Late (30+)
UdyrUdyr
CassiopeiaCassiopeia
Favorable
Favorable
Passive

Cassiopeia's abilities

Passive, spells and ultimate

Serpentine Grace (P)

All Move Speed bonuses are more effective on Cassiopeia.

Cooldowns

Cooldowns by spell rank

LevelQWER
33.5s24s0.75s
63.5s24s0.75s2m
93.5s22s0.75s2m
113.5s20s0.75s1m40
163.5s16s0.75s1m20
183.5s16s0.75s1m20

Playing against Cassiopeia

How to counter and exploit weaknesses

1

Turn away when she casts her R: you'll be slowed instead of stunned if you're not facing her.

2

Her DPS depends on landing Q (poison) — if she misses Q, she can't effectively spam E.

3

W prevents dashes: do NOT dash into the zone, go around it.

4

Cassiopeia doesn't have boots — slows are particularly effective against her.

Source: op.gg + LTL Engine · Patch 16.9.1 · May 9, 2026