Arrr, good patterns
- Arrr, uses spells to shape space, punish predictable movement or control an approach.
- Ranged basic attacks can contribute without entering melee distance when spacing be preserved.
Game patch, matey 26.20Data Dragon 16.20.1
Arrr, reference patch 16.20.1
Cassiopeia
the Serpent's Embrace
Cassiopeia be a spell-focused champion who plays 'round range, cooldowns and controlled areas. This overview keeps th' explanation practical and leaves patch-sensitive numbers to Riot's structured data and th' present in-battle tooltip.
Arrr, usual roleMid◆ClassMage
10DifficultyArrr, high · 10/10
◎Arrr, basic attacksRangedArrr, ranged basic attacks · 550 range.
◈Arrr, damage profileArrr, mostly magic damageMost normal kit pressure be magic. Magic resistance may lend a hand, but control, penetration and true damage still matter.
#Arrr, reference patch16.20.1
Arrr, strengths and limits
What Cassiopeia does well, and what can go wrong
These be kit-level patterns, nay a promise that every course or matchup plays th' same way.
Arrr, limits to respect
- Fit fer th' captain's eye pressure falls while key spells be overboard or miss their intended area.
- Needs th' sailor to respect cooldowns, resources and th' foe's course into th' fight.
Arrr, riot ally tips
Use these while learning th' championUse Twin Fang on poisoned stationary targets like monsters and units stunned by her Petrifying Gaze fer maximum damage.
Lead yer foe when targeting wit' Noxious Blast to ensure th' hit.
Riot foe tips
What an foe be told to watch ferBe wary o' Cassiopeia's damage potential wit' Twin Fang when she has ye poisoned.
Turn astern from Cassiopeia when she be casting Petrifying Gaze to get slowed instead o' stunned.
Arrr, practical champion reading
Arrr, how to read Cassiopeia in a real fight
Use these patterns to ask better questions afore choosing an gear, target or commitment. They describe th' kit, nay a promised result.
Arrr, primarily magic pressure
Magic resistance can reduce th' broad spell profile, but positioning and cooldown tracking still decide whether th' fit fer th' captain's eye tricks connect.
Track th' shipshape trick cycle
Do nay judge th' champion from one control. Watch which setup, payoff and escape tools be available afore choosing a trade or commitment.
Arrr, spacing protects repeated output
Ranged attacks be useful only while a seaworthy line to th' target remains. Flanks, hard control and blocked escape routes can remove that advantage quickly.
Shape th' fight wit' spell timing
Use range, controlled space and cooldown order to make th' next aboard action easier fer th' crew rather than spending every spell at once.
Identify th' exact movement restriction
Tenacity can shorten only eligible control. Displacements, airborne effects and repeated slows need their own positioning, blocking or movement captain's answer.
Inspect whether recovery changes th' fight
Anti-heal or anti-shielding be situational. Buy it only when th' effect be materially protecting targets and yer champion can apply th' captain's answer reliably.
Arrr, mana and cooldowns both matter
A spell being available does nay mean th' shipshape sequence be sustainable. Watch th' resource bar as well as th' setup and escape cooldowns.
Defensive gear reference
What can help against Cassiopeia?
Set sail wit' th' threat that be actually affecting th' clash. These be conditional comparisons, nay an automatic counter loadout.
Arrr, dEFENSIVE BOOTS
Mercury's Treads most often fit better
Magic resistance addresses th' broad damage profile, while Tenacity can shorten reducible control.
Pick Plated Steelcaps instead only when physical basic attacks from this champion or th' rest o' th' crew be th' larger repeated threat.Normal Draft and Ranked role sea chart
Where Cassiopeia fits on Summoner's Rift
Each course be assessed separately. Unfurl a role to reach its queue-specific loadout and matchup preparation.
TopUnestablished course
Old chart, matey. Recommendations await inspection. Cassiopeia be normally played Mid and does nay currently have a reviewed Top course. Top most often needs independent laning, durable trading or reliable side-course pressure. Treat this as a deliberate experiment, nay a standard recommendation.
JungleUnestablished course
Old chart, matey. Recommendations await inspection. Cassiopeia be normally played Mid and does nay currently have a reviewed Jungle course. Jungle most often needs repeatable monster clear th' deck, seaworthy pathing and prize control without course income. Treat this as a deliberate experiment, nay a standard recommendation.
MidArrr, primary role
Old chart, matey. Recommendations await inspection. Cassiopeia has an established central-course course wit' access to waves, both sides o' th' river and meaningful pressure betwixt prizes.
BotUnestablished course
Old chart, matey. Recommendations await inspection. Cassiopeia be normally played Mid and does nay currently have a reviewed Bot course. Bot most often needs dependable duo-course scaling and sustained damage wit' shared early pressure. Treat this as a deliberate experiment, nay a standard recommendation.
SupportUnestablished course
Old chart, matey. Recommendations await inspection. Cassiopeia be normally played Mid and does nay currently have a reviewed Support course. Support most often needs useful engage, peel or utility while operating on low doubloons income. Treat this as a deliberate experiment, nay a standard recommendation.
Arrr, Situational AP purchase
Arrr, When should you buy anti-heal?
Arrr, Buy healing reduction when enemy healing or regeneration is deciding fights and you can keep damaging the relevant target. Grievous Wounds reduces healing; it does not reduce shields, magic damage or crowd control.
Arrr, Start with the component
Arrr, Oblivion Orb can provide healing reduction without immediately paying for a completed Morellonomicon. Fit the component around your core damage, mana and survival needs; check the current queue's item tooltip.
Arrr, Finish when it fits the fight
Arrr, Complete Morellonomicon when its stats and slot efficiency suit your build. Do not treat it as a mandatory first item just because your champion deals magic damage.
Arrr, Coordinate coverage
Arrr, Multiple Grievous Wounds sources do not add their percentages together. Another reliable applier may cover the same target, but you may still need your own source for a separate fight or target.
Arrr, Repeated spell damage and damage over time can maintain coverage more reliably than a single hit. Match the purchase to your actual spell access, enemy sustain and the teammates who can apply the debuff.
Arrr, Will the fight last long enough?
Arrr, If you die before dealing damage, you apply no healing reduction. If your target dies before healing, there is little healing to prevent. The debuff applies on qualifying damage immediately; it does not need to build up. It remains briefly after your last hit, so teammates can benefit even after you disengage.
Arrr, Only healing during the active debuff counts. For example, 40% reduction prevents 80 of a 200-point heal, or 400 of a 1,000-point heal, before other modifiers. Compare that with the damage, penetration or survival you delayed; neither example guarantees a kill. Healing after the debuff expires is unaffected.
Arrr, See the Arrr, oblivion Orb and Arrr, Morellonomicon Arrr, references for current effects and queue availability. These are situational decisions, not a measured best-build claim.
Arrr, kit reference
Cassiopeia tricks
Trick names, descriptions and numeric fields come from Riot Data Dragon. Practical reads be independently written; th' present in-battle tooltip remains authoritative.
Tricks Data Dragon 16.20.1Cooldown / Cost / Range Data Dragon 16.20.1
P
Passive
Serpentine Grace
Arrr, what it doesEnglishAll Move Speed bonuses are more effective on Cassiopeia.
Arrr, practical readSerpentine Grace be th' always-on rule shaping Cassiopeia's normal trading and fight pattern. Watch its in-battle state afore committing.
Q
Q trick
Noxious Blast
Arrr, what it doesEnglishCassiopeia blasts an area with Poison after a brief delay, granting her increased Move Speed if she hits an enemy champion.
Arrr, practical readNoxious Blast be part o' Cassiopeia's Q pattern. Read its listed effect first aboard, then track th' cooldown and condition that make th' next aboard use valuable.
CooldownArrr, 3.5 secCost50/55/60/65/70Arrr, listed rangeArrr, 850 units
W
W trick
Miasma
Arrr, what it doesEnglishCassiopeia releases several clouds of poison, slowing, grounding, and lightly damaging enemies that pass through them. Grounded enemies cannot use Movement abilities.
Arrr, practical readMiasma contributes a slowing effect. Its value changes wit' cooldown, range and target access; recognise th' setup afore moving into its effective area.
CooldownArrr, 24/22/20/18/16 secCost70/75/80/85/90Arrr, listed rangeArrr, 700 units
E
E trick
Twin Fang
Arrr, what it doesEnglishCassiopeia 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.
Arrr, practical readTwin Fang contributes damage. Its value changes wit' cooldown, range and target access; recognise th' setup afore moving into its effective area.
CooldownArrr, 0.75 secCost45Arrr, listed rangeArrr, 700 units
Protection
Th' protection or sustain be part o' th' cast's value. Compare its timing wit' incoming damage rather than reading only th' offensive effect.
R
Ultimate
Petrifying Gaze
Arrr, what it doesEnglishCassiopeia 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.
Arrr, practical readPetrifying Gaze contributes a slowing effect. Its value changes wit' cooldown, range and target access; recognise th' setup afore moving into its effective area.
CooldownArrr, 120/100/80 secCost100Arrr, listed rangeArrr, 825 units
Arrr, levels 1–18
Cassiopeia · Health, arr / Mana, arr · Tricks
Base values exclude gear, runes, temporary buffs and mode-specific modifiers. Cooldowns be th' listed base cooldown afore trick haste.
Cooldown Data Dragon 16.20.1
Basic trickNoxious Blast
Can receive its first aboard point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Arrr, all ranksArrr, 3.5 sec
Basic trickMiasma
Can receive its first aboard point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Arrr, rank 1Arrr, 24 secArrr, rank 2Arrr, 22 secArrr, rank 3Arrr, 20 secArrr, rank 4Arrr, 18 secArrr, rank 5Arrr, 16 sec
Basic trickTwin Fang
Can receive its first aboard point from level 1. Later ranks normally become available at levels 3, 5, 7 and 9.
Arrr, all ranksArrr, 0.75 sec
UltimatePetrifying Gaze
First aboard rank becomes available at level 6; later ranks normally become available at levels 11 and 16.
Arrr, rank 1Arrr, 120 secArrr, rank 2Arrr, 100 secArrr, rank 3Arrr, 80 sec
Unfurl every levelHull and mana from level 1 to 18
| Rank | Health, arr | Mana, arr | Trick milestone |
|---|---|---|---|
| 1 | 610 | 450 Mana, arr | Pick th' first aboard basic trick |
| 2 | 681 | 479 Mana, arr | Stow another basic trick or rank |
| 3 | 755 | 509 Mana, arr | Stow another basic trick or rank |
| 4 | 832 | 541 Mana, arr | Spend one trick point |
| 5 | 913 | 574 Mana, arr | Spend one trick point |
| 6 | 997 | 608 Mana, arr | First aboard ultimate rank normally available |
| 7 | 1,085 | 644 Mana, arr | Spend one trick point |
| 8 | 1,176 | 681 Mana, arr | Spend one trick point |
| 9 | 1,271 | 720 Mana, arr | Spend one trick point |
| 10 | 1,369 | 760 Mana, arr | Spend one trick point |
| 11 | 1,470 | 801 Mana, arr | Arrr, second ultimate rank normally available |
| 12 | 1,575 | 844 Mana, arr | Spend one trick point |
| 13 | 1,683 | 888 Mana, arr | Spend one trick point |
| 14 | 1,795 | 934 Mana, arr | Spend one trick point |
| 15 | 1,910 | 981 Mana, arr | Spend one trick point |
| 16 | 2,029 | 1,029 Mana, arr | Arrr, final ultimate rank normally available |
| 17 | 2,151 | 1,079 Mana, arr | Spend one trick point |
| 18 | 2,276 | 1,130 Mana, arr | Spend one trick point |
Pick th' next aboard query
Turn th' profile into a pre-battle course
Pick a queue-aware loadout, compare a course foe, or return to th' full champion library.