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Cassiopeia

How Cassiopeia Works - Quick Ability and Build Guide

Season 16 7 min read
Guide Sections (16)

Champion Stats

Role Mage
Difficulty
High (10/10)
Blue Essence 2400 BE

Why High-Elo Players Smurf with Cassiopeia

Low Elo players do not understand 'Grounding'. They walk into your W (Miasma) and frantically press Flash or Dash, realize nothing is happening, and die. They also disrespect her Level 2 kill pressure. If you land one Q, you follow up with infinite E's. A smurf abuses the 'Scripting' accusations—your kiting should be so perfect that they stop playing to type 'nice scripts' in chat.

The Level 1 Cheese

First Blood Strategy

The 'E-Start' Poke. Start E (Twin Fang). Walk to lane and auto-attack the enemy. If they trade back, E them. Your E deals bonus damage if they are poisoned, but even without poison, it's a reliable last-hitting and poke tool. The Real Cheese is Level 2. Start E, then Q. Land Q -> Spam E. The moment Q lands, you gain Movement Speed and they melt. Run them down.

The 'Pay-to-Win' Skin Advantage

'Spirit Blossom Cassiopeia' is the pay-to-win choice; the sound effects are smoother and the R animation is slightly more deceptive/subtle. 'Coven Cassiopeia' is visually stunning but the R screech is a dead giveaway. 'Eternum' feels sharp for kiting.

When They Ban Cassiopeia

Backup Pick: If Cassiopeia is banned, Ryze offers the same 'Machine Gun Mage' playstyle with high DPS. Syndra offers high burst and control if you want to be more burst-oriented. Kayle for the late-game scaling assurance.

Rune Setup

Best Runes: Conqueror is mandatory. Cassio stacks it instantly with E spam. Presence of Mind (you need mana), Legend: Haste (or Tenacity), Last Stand. Secondary Sorcery: Manaflow Band and Transcendence. You need Mana and Haste. Phase Rush is an alternative if you are against a team of slows (Nasus/Zilean), but Conqueror 1v9s harder.

Skill Priority

Order:

E Q WMax E (Twin Fang) first; it's your machine gun. Max Q second for the movement speed and poison damage. Max W last (utility). Upgrade R whenever possible.

Mastering Cassiopeia's Kit

Q Noxious Blast

Noxious Blast. Blasts an area with poison. If it hits a champion, you gain Movement Speed. This is your kiting tool. Land Q -> Run Fast -> E spam.

W Miasma

Miasma. Spews venom in an arc. Enemies in the cloud are GROUNDED (cannot use movement abilities like Flash, Dash, Blink) and poisoned. Use this to trap mobile carries.

E Twin Fang

Twin Fang. Your main damage. Deals massive bonus damage to poisoned targets and heals you. Refunds mana if it kills the target. Treat this like your Auto-Attack.

R Petrifying Gaze

Petrifying Gaze. Blasts enemies in a cone. Stuns them if they face you, slows them if they face away. The ultimate 'Turn' ability.

Matchup Tips

Skill Matchup. His Windwall (W) blocks your E (Twin Fang). If he windwalls, back off. Your W stops him from sliding (E). Ground him and kill him. Do not ult if he has windwall up.

Volatile. He heals a lot, you heal a lot. If he steals your ult, be ready to turn away. Buy Anti-Heal early (Oblivion Orb).

Nightmare. Her mobility is too high. If you miss W, she kills you. Play safe and farm. Rush Rylai's to slow her down.

The Ego Check

WARNING: Stop missing Q! If you miss Q, you are a sitting duck. Your E deals no damage without poison. Practice your Q placement—predict where they will last hit. Also, STOP trying to buy boots. You literally cannot. Buy an early Dark Seal instead.

When to Queue Dodge

Dodge Xerath and Vel'Koz. They out-range you so hard you will never touch them. Also dodge Olaf; he can run through your R and W with his Ragnarok and run you down.

Teamfight Role

You are the carry. Do not dive. Front-to-back. Melt the tank with Q-E-E-E. Save your W (Miasma) for when their assassin (Zed/Akali) tries to jump on you; throw it at your feet. Hold your R. The threat of your R is stronger than the R itself. Wait for them to commit to a dive, THEN R. If you R too early, they turn away.

The 'Disrespect' Build

Rylai's Crystal Scepter -> Cosmic Drive. You are now fast, and they are slow. You can kite melee champions infinitely. Finish with Rabadon's and Liandry's. You have 6 items slots, remember? You will have 1000+ AP late game.

Power Windows

Level 2 (All-in potential). Tear Stacks (Seraph's Embrace completion). Level 16 (Full build + no boots slot advantage).

Tilt Factor

Learn to 'Orbwalk' perfectly. If you kite well enough, they WILL call you a scripter. Lean into it. Type ':)' when they accuse you. Use the 'Cassiopeia Squeeze' emote when they die to poison.

Recent Patch History

Recent Balance Changes
Patch Date Type Changes
V14.15 Jul 31, 2024 BUFF Q adjusted, Base stats adjusted
V14.10 May 15, 2024 ADJUST Base stats adjusted
V13.22 Nov 8, 2023 BUFF Base stats buffed
V12.10 May 25, 2022 BUFF Base stats buffed
V11.15 Jul 21, 2021 BUFF E buffed

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