Cassiopeia

Cassiopeia Build

the Serpent's Embrace

Role: Mid Pick Rate: 1.9% Win Rate: 51.45%

Recommended Build

Summoner Spells

Flash Flash
Teleport Teleport

Skill Priority

E › Q › W

Items

Start
Doran's Ring
Health Potion
Core
Rod of Ages Rod of Ages
Boots of Swiftness Boots of Swiftness
Archangel's Staff Archangel's Staff
Late
Rylai's Crystal Scepter
Zhonya's Hourglass
Rabadon's Deathcap

Runes

Most Played
?
Deathfire Touch
Deathfire Touch 73.4% · 51.6% WR
Manaflow Band
Manaflow Band 79.2% · 51.4% WR
Transcendence
Transcendence 50.1% · 50.5% WR
Scorch
Scorch 76.8% · 51.5% WR
Precision
Presence of Mind
Presence of Mind 19.5% · 51.1% WR
Coup de Grace
Coup de Grace 1.1% · 50.1% WR
Adaptive Force
Adaptive Force
Adaptive Force
Adaptive Force
Health Scaling
Health Scaling
Best WR
?
Deathfire Touch
Deathfire Touch 73.4% · 51.6% WR
Manaflow Band
Manaflow Band 79.2% · 51.4% WR
Celerity
Celerity 29.7% · 53.1% WR
Scorch
Scorch 76.8% · 51.5% WR
Resolve
Bone Plating
Bone Plating
Unflinching
Unflinching
Ability Haste
Ability Haste
Health
Health

Skill Order

Q
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Win Rate by Elo

Iron Iron 40.42%
Bronze Bronze 45.05%
Silver Silver 46.07%
Gold Gold 48.41%
Platinum Platinum 49.28%
Emerald Emerald 50.36%
Diamond Diamond 51.35%
Master Master 52.75%
Grandmaster Grandmaster 55.37%
Challenger Challenger 54.82%
All Elos All Elos 51.31%

Best Counters and Matchups for Cassiopeia

See all counters for Cassiopeia

Top 5 Counters Against Cassiopeia

Aurelion Sol
Aurelion Sol Matchup detail
45.3% WR -3.0%
Twisted Fate
Twisted Fate Matchup detail
46.0% WR -1.6%
Akali
Akali Matchup detail
46.1% WR -2.6%
LeBlanc
LeBlanc Matchup detail
46.1% WR -2.9%
Sion
Sion Matchup detail
46.2% WR +4.9%

Top 5 Best Matchups for Cassiopeia

Mel
Mel Matchup detail
58.2% WR +5.9%
Swain
Swain Matchup detail
58.1% WR +11.0%
Yone
Yone Matchup detail
55.2% WR +5.8%
Yasuo
Yasuo Matchup detail
55.1% WR +5.9%
Riven
Riven Matchup detail
54.8% WR +9.1%

Patch History

V14.16
  • Twin Fang Bug Fix: Heal is now properly reduced against monsters.
V14.15
  • Stats Base mana increased to 400 from 350. Mana growth reduced to 40 from 60.
  • Noxious Blast Mana cost reduced to 50 / 55 / 60 / 65 / 70 from 50 / 60 / 70 / 80 / 90. AP ratio per tick reduced to 10% AP from 12.857142857143% AP. Total AP ratio reduced to 70% AP from 90% AP.
  • Miasma Mana cost reduced to 70 / 75 / 80 / 85 / 90 from 70 / 80 / 90 / 100 / 110.
  • Twin Fang Mana cost reduced to 40 at all ranks from 50 / 48 / 46 / 44 / 42. Poison bonus AP ratio reduced to 55% AP from 60% AP.
V14.10
  • General Magical Footwear is now replaced by Cash Back instead of Triple Tonic.
V13.22
  • Stats Basic attack missile speed increased to 1500 from 1200.
V12.23
  • General Bug Fix: Basic attack hit VFX are now properly visible.
V12.10
  • Stats Base health increased to 630 from 560. Health growth increased to 104 from 90. Armor growth increased to 4.7 from 3.5. Magic resistance growth increased to 1.3 from 0.5.
  • Twin Fang Heal AP ratio reduced to 10 / 11.5 / 13 / 14.5 / 16% AP from 12 / 14 / 16 / 18 / 20% AP.
V11.15
  • Twin Fang Bonus base damage increased to 20 / 40 / 60 / 80 / 100 from 10 / 30 / 50 / 70 / 90.
V11.14
  • Miasma Undocumented/Bug fix: Grounded debuff can once again be cleansed by Olaf's Ragnarok.
V11.13
  • Miasma Bug Fix: Grounded debuff is now non-dispellable. This prevents the debuff from being briefly removed by cleanses even while the player remains in the AoE. Because of this, Olaf's Ragnarok fails to dispell and become immune to the effect for the remaining duration unless he leaves and reenters it.(bug)
V11.8
  • Twin Fang Mana cost reduced to 50 / 48 / 46 / 44 / 42 from 50 at all ranks.
V10.23
  • Stats Mana growth increased to 60 from 40.
V10.13
  • Stats Base magic resistance reduced to 32 from 34.
V10.12
  • Stats Base health reduced to 560 from 575. Base armor reduced to 18 from 20. Base magic resistance increased to 34 from 30.
V10.11
  • General Updated visual effects.
  • Noxious Blast Updated the smoke particles on her base skin to more accurately stay within the actual range of the ability.
  • Twin Fang Enemy champions that are Poisoned will have a fang icon over their head to indicate that they will receive bonus damage from it.
  • Petrifying Gaze Updated on all skins with a decal at the edge of her hitbox, more clearly showing the area affected.
V10.9
  • General New voice lines from Ascension added.
V10.2
  • Twin Fang Bug Fix: Heals for the proper amount on large monsters.
V9.14 - July 18th Hotfix
  • Miasma Cooldown increased to 24 / 22 / 20 / 18 / 16 seconds from 24 / 21 / 18 / 15 / 12.
  • Twin Fang Healing reduced to 12 / 14 / 16 / 18 / 20% AP from 13 / 16 / 19 / 22 / 25% AP.
V9.14
  • General New Effect: Can now buffer her ability casts.
  • Stats Base health increased to 575 from 537. Health growth increased to 90 from 87. Base mana reduced to 350 from 418. Mana growth increased to 40 from 31.5. Base armor reduced to 20 from 25.
  • Miasma Removed: No longer has minimum cast range of 500. Maximum cast range reduced to 700 from 800. Cooldown changed to 24 / 21 / 18 / 15 / 12 seconds from 18 / 17.5 / 17 / 16.5 / 16.
  • Twin Fang New Effect: Healing is now only 25% effective against minions and small monsters. Healing changed to 13 / 16 / 19 / 22 / 25% AP from 5 − 22 (based on level) (+ 10% AP). Mana cost changed to 50 at all ranks from 40 / 45 / 50 / 55 / 60.
V9.8
  • Twin Fang Mana cost reduced to 40 / 45 / 50 / 55 / 60 from 40 / 50 / 60 / 70 / 80.
V9.3
  • Noxious Blast Total damage reduced to 75 / 110 / 145 / 180 / 215 from 75 / 120 / 165 / 210 / 255. AP ratio increased to 90% AP from 80% AP.
  • Miasma Mana cost increased to 70 / 80 / 90 / 100 / 110 from 70 at all ranks. Base damage per second reduced to 20 / 25 / 30 / 35 / 40 from 20 / 30 / 40 / 50 / 60.
V9.2
  • Miasma Cooldown increased to 18 / 17.5 / 17 / 16.5 / 16 seconds from 18 / 17 / 16 / 15 / 14. Base damage per second reduced to 20 / 30 / 40 / 50 / 60 from 20 / 35 / 50 / 65 / 80.
V8.24b
  • Noxious Blast Mana cost increased to 50 / 60 / 70 / 80 / 90 from 50 / 55 / 60 / 65 / 70. Total base damage reduced to 75 / 120 / 165 / 210 / 255 from 75 / 125 / 175 / 225 / 275.
V8.14
  • Noxious Blast Base damage increased to 75 / 125 / 175 / 225 / 275 from 75 / 120 / 165 / 210 / 255. AP ratio increased to 80% AP from 70% AP.
V8.9
  • Stats Base mana increased to 418 from 334. Mana growth reduced to 31.5 from 63. Base mana regeneration increased to 8 from 6.
V8.7
  • General Bug Fix: Now correctly plays the on-hit VFX for her basic attacks.
V8.3
  • Stats Base health regeneration reduced to 5.5 from 5.69.
V8.2
  • Twin Fang New Effect: Now draws nearby minion aggro when targeting an enemy champion.
V8.1
  • Jade Fang Cassiopeia Petrifying Gaze Bug Fix: Overlay is no longer overwritten by Rylai's Crystal Scepter.
V7.24b
  • Noxious Blast Mana cost reduced to 50 / 55 / 60 / 65 / 70 from 60 / 65 / 70 / 75 / 80.
  • Twin Fang AP ratio increased to 60% AP from 50% AP.
V7.22
  • Stats Base health increased to 537 from 525. Health growth increased to 87 from 75.
V7.18
  • Twin Fang Poisoned bonus magic damage reduced to 10 / 30 / 50 / 70 / 90 from 15 / 40 / 65 / 90 / 115. Poisoned AP ratio increased to 50% AP from 40% AP.
V7.17
  • General Bug Fix: Fixed a bug where, when playing with a skin, her portrait would revert to her base portrait while dead.
V7.16
  • Stats Base mana reduced to 334 from 375. Mana growth increased to 63 from 60.
  • Twin Fang Base damage against poisoned targets changed to 15 / 40 / 65 / 90 / 115 from 10 / 40 / 70 / 100 / 130. AP ratio against poisoned targets increased to 40% AP from 35% AP.
V7.15
  • General Bug Fix: Now correctly plays her spell effort voiceover.
V7.10
  • General New Effect: Tail now follows her realistically as she moves and turns.
V7.9
  • Stats Magic resistance growth increased to 0.5 from 0.
V7.5
  • Twin Fang Bug Fix: Casting it now respects stop and hold commands for her movement queueing.
V7.4
  • General New Effect: Tail now follows her realistically as she moves and turns.
  • Petrifying Gaze Bug Fix: Flashing during Petrifying Gaze's cast time no longer resets the direction the cone fires in. It now consistently fires in the direction Cassiopeia faced before Flashing. This addresses a bug that sometimes caused Petrifying Gaze's visuals to not line up with the actual effect.
V6.22
  • General Bug Fix: Now properly plays VO lines when placing wards.
V6.19
  • Miasma Maximum range reduced to 800 from 900.
  • Twin Fang Base heal changed to 5 − 22 (based on level) from 5 / 10 / 15 / 20 / 25.
V6.11
  • Noxious Blast Bug Fix: Range indicator has been extended to match its cast range.
  • Miasma Bug Fix: Champion standing in Miasma can no longer dash using the second cast of Mark / Dash.
V6.10
  • Noxious Blast Cast range increased to 850 from 750. Movement speed bonus takes longer to decay. Poisoned particle's size has been increased.
  • Miasma Cooldown reduced to 18 / 17 / 16 / 15 / 14 seconds from 22 / 20 / 18 / 16 / 14. Minimum cast range reduced to 500 from 550. Maximum cast range increased to 900 from 800. New Effect: No longer stops on terrain hit. Bug Fix: Fixed a number of interactions with Grounded debuff.
V6.9 May 9th hotfix
  • Twin Fang Cooldown reduced to 0.75 seconds from 0.9. Mana cost reduced to 40 / 50 / 60 / 70 / 80 from 60 / 65 / 70 / 75 / 80. Cast range increased to 700(from Cassiopeia's hitbox center to her opponent's.) from 550(from Cassiopeia's hitbox edge to her opponent's). Overall, slight increase against small targets and slight decrease against large targets.
V6.9
  • General New ability icons.
  • Stats Movement speed reduced to 328 from 335. Base health increased to 525 from 506. Base mana increased to 375 from 370. Base armor increased to 25 from 22.22. Armor growth reduced to 3.5 from 4. Base mana regen reduced to 8 from 8.36. Mana regen growth increased to 0.8 from 7.5. Base health regen increased to 6 from 5.4. Base attack damage increased to 53 from 52.3. Attack damage growth reduced to 3 from 3.2.
  • Serpentine Grace (Innate) New Innate: Cassiopeia cannot purchase Boots and instead gains 4 Movement speed per level (332 − 400 (based on level)).
  • Noxious Blast Base damage increased to 75 / 120 / 165 / 210 / 255 from 75 / 115 / 155 / 195 / 235. AP ratio increased to 70% AP from 45% AP. Cooldown reduced to 3.5 seconds from 4. Mana cost increased to 60 / 65 / 70 / 75 / 80 from 40 / 50 / 60 / 70 / 80. Movement speed bonus increased to 30 / 35 / 40 / 45 / 50% from 20% at all ranks. New Effect: Movement speed now decays over the duration.
  • Miasma New Active: Cassiopeia spits eight bolts of venom forward 550 - 800 units over an arched area, leaving toxic clouds where they hit the ground or terrain for 5 seconds. Enemies within the clouds take 20 / 35 / 50 / 65 / 80 (+ 15% AP) magic damage per second and are afflicted with Debilitating Poison, slowing them by 40 / 50 / 60 / 70 / 80% and grounding them. New Effect: Slow now decays over time. Mana costs: 70 mana Cooldown: 22 / 20 / 18 / 16 / 14 seconds
  • Twin Fang Base damage changed to 52 − 120 (based on level) from 55 / 80 / 105 / 130 / 155. AP ratio reduced to 10% AP from 55% AP. Cooldown reduced to 0.9 seconds from 5. Mana cost changed to 60 / 65 / 70 / 75 / 80 from 50 / 60 / 70 / 80 / 90. Mana refund reduced to 60 / 65 / 70 / 75 / 80 from 50 / 60 / 70 / 80 / 90 Champions hit by Piltover Peacemakers (Q) at greater than 75% of max range(+ 1.5% maximum mana). Removed: Cooldown reset versus poisoned targets. New Effect: Now deals 10 / 40 / 70 / 100 / 130 (+ 35% AP) bonus damage and restores 5 / 10 / 15 / 20 / 25 (+ 10% AP) health versus poisoned targets.
  • Petrifying Gaze Slow reduced to 40% from 60%
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Recommended build

What players actually run on Cassiopeia on the current patch: summoner spells, skill priority, starting, core and late items, runes and skill order.

Every entry comes with its pick rate (how often it is chosen) and, where available, its win rate. For runes, Most Played is the page the majority takes and Best WR the variant that wins most among those with enough games: when they differ, the second is usually the sharper choice, the first the safer one.

Win rate by elo

Cassiopeia's win rate in each rank tier, from Iron to Challenger, plus all tiers combined.

A champion that climbs with rank is usually one that rewards mechanics or game knowledge; one that peaks in low elo is often easy to pick up and punished by better players. Read the tier you play in, not the average. Tiers with no data for this patch are hidden.

Counters and matchups

A preview of the counters page: the five opponents Cassiopeia struggles against the most, and the five it beats most often, on the current patch.

Percentages are Cassiopeia's own win rate in each duel, with the gap to its overall win rate. The full lists, with every matchup that has enough games, are on the counters page linked below each table.

Patch history

Balance changes that touched Cassiopeia, patch by patch, most recent first, as published in the official patch notes.

The ten latest patches are shown, the older ones fold out. Use it to read the win rate movements above: a jump right after a patch is usually a buff or a nerf, not a change in how people play the champion.