01 / Cassiopeia
At a glance
Learn Cassiopeia abilities and prepare your first games. Find builds for each supported role.
02
Strengths & weaknesses
Tools to play around
- Noxious BlastAdds a utility effect to the champion’s kit.
- Twin FangContributes damage to the champion’s rotation.
- Petrifying GazeCreates a control window for a follow-up.
What can go wrong
- Noxious BlastRead the effect and its conditions, then practise it alone. Build your sequence around the effect you can reliably reproduce.
- Twin FangPractise the hit area and target conditions first. Do not spend the rest of your rotation automatically when the opening damage misses.
- A completed combo is only useful when your position, resources and follow-up are safe.
03
Abilities & tips
Open an ability to read its effect and a practical use tip.
PSerpentine Grace
All Move Speed bonuses are more effective on Cassiopeia.
Read the effect and its conditions, then practise it alone. Build your sequence around the effect you can reliably reproduce.
QNoxious Blast
Cassiopeia blasts an area with Poison after a brief delay, granting her increased Move Speed if she hits an enemy champion.
Read the effect and its conditions, then practise it alone. Build your sequence around the effect you can reliably reproduce.
WMiasma
Cassiopeia releases several clouds of poison, slowing, grounding, and lightly damaging enemies that pass through them. Grounded enemies cannot use Movement abilities.
Read the effect and its conditions, then practise it alone. Build your sequence around the effect you can reliably reproduce.
ETwin 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.
Practise the hit area and target conditions first. Do not spend the rest of your rotation automatically when the opening damage misses.
RPetrifying 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.
Use this control to create a follow-up window. Check the target’s defensive spells and your teammates’ range before committing.
Cassiopeia combos: execution and timing
AA = basic attack · EAA = empowered attack · 1/2/3 = cast stage. Follow the order, not instant key presses.
Recast practice: Noxious Blast
- Q
- E
- E
- E
- E
- Q
With Cassiopeia, start with Noxious Blast, then continue through Twin Fang → Twin Fang → Twin Fang → Twin Fang → Noxious Blast. Track the marks from Noxious Blast before following with Twin Fang. Compare a marked target with an unmarked one in practice.
Recast practice: Noxious Blast
- Q
- E
- E
- W
- E
- E
- Q
- E
With Cassiopeia, start with Noxious Blast, then continue through Twin Fang → Twin Fang → Miasma → Twin Fang → Twin Fang → Noxious Blast → Twin Fang. Track the marks from Noxious Blast before following with Twin Fang. Compare a marked target with an unmarked one in practice.
05
Game plan by role
Cassiopeia · Mid
Use the wave to control when trades happen. Keep a defensive option if the opposing jungler is missing, and avoid forcing a combo into a large enemy wave.
Move after checking the wave, vision and who can follow. A useful roam should not cost several uncontested waves for no clear opportunity.
Fight from a position where you can repeat your useful spells. Look for an opening after enemy control is spent instead of entering first by habit.
Before your next fight, check: Noxious Blast · Petrifying Gaze · Combos
06
Matchup preparation
Compare opponents in the build for the role you are actually playing. Then check their key control, escape and defensive spells before choosing your trade.
07
Practice checklist
- Cast each ability alone and identify its range, target conditions and stopping point.
- Practise the first sequence slowly. Repeat it while moving, without skipping the conditions shown on its card.
- After each attempt, identify the spell you would still have available to defend or retreat.
08
Cassiopeia · Builds & runes
Choose a role, then select your rank on the build page for runes, items, skill order and matchup statistics.