How To Build on Cassiopeia – Everything to Know for Season 13!

Is Cassiopeia AP or AD in League of Legends? Complete Guide

For any new player trying out Cassiopeia, it’s a bit confusing as Cassiopeia may seem like an auto-attacking champion, but that isn’t true! Cassiopeia is a mid-lane mage who relies heavily on her “E” ability which scales with AP. This is why players usually build AP items on her, as they allow her to maximize her E damage.

Before we move on to the details of her kit, here are a few things you should know:

Unlike other mages, Cassiopeia doesn’t rely on burst damage. She has a high amount of DPS as her E ability cooldown is very low, making her a valuable asset in extended team fights. She is also very fast when she can hit her Q ability, allowing her to get out of tricky situations or chase down a champion.

Cassiopeia has been part of the game for a long time now with her build changing a lot over the years. Her unique playstyle has given birth to many interesting builds over the years. Season 13 Cassiopeia builds try to maximize her E usage with her Q and W ability acting as supporting

Also check out: How to build on Akshan

Is Building AP On Cassiopeia Worth It?

Cassiopeia AP AD Guide in League of Legends

Cassiopeia’s unique playstyle makes her a difficult champion to learn in the midlane. When compared to champions like Veigar, she has much more complex mechanics as the player needs good kiting skills to play her efficiently. However, once a player has put in his time in this champion, she can prove to be very rewarding as she has high damage output, very good kiting ability, and long stun, all built into her kit. Are you thinking of using this character while playing LoL S13?

How To Play Proper Cassiopeia in LoL S13?

If you are looking for a detailed guide to get you started on the champion, don’t worry we have got you covered.


“Noxious Blast (Q)”:  Her Q creates a blast at the target location that explodes after a short delay. Enemies hit with the blast are poisoned for the next 3 seconds. They take magic damage every second over the duration. If this ability hits an enemy champion, Cassiopeia also gains bonus movement speed that decays over 3 seconds.

  • Miasma (w): Cassiopeia spews 8 bolts of venom in an arc at the cursor location, these create toxic clouds in the area for 5 seconds. Enemies within these clouds are slowed and grounded by an amount that slowly decays.
  • Twin Fang (E): Cassiopeia launches her fangs at the target enemy that deals magic damage. If this ability kills the target, Twin Fang’s mana cost is refunded. If the enemy hit by twin fang is also poisoned, Cassiopeia deals bonus magic damage and heals herself.
  • Petrifying Gaze (R): Cassiopeia blasts enemies in a cone in the target direction. She deals magic damage to enemies struck with the ability and slowing them for 2 seconds. Enemies with their facing direction towards her are instead stunned for the same duration.

As we can see, Cassiopeia’s E is her major source of damage. Her Q allows her to heal from her E and gain movement speed to kite her opponents. Her W allows her to trap her opponents in a confined area so they can’t escape. Her R is one of her strongest abilities which, if used correctly, can turn the whole team fight. She can use her R to stun anyone trying to chase her or fight her, giving her time to run away to a safer distance. Any player who learns how to use her abilities to maximize her E damage can easily carry any game.

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Cassiopeia AP or AD Runes Guide in League of Legends

  • Conqueror: Cassiopeia is a champion who loves to take extended trades, Conquerer allows her to deal more damage as well as heal from the damage she does.
  • Presence of Mind: Cassiopeia is a champion who relies on her ability to spam E in order to win, for this she needs a steady supply of mana which is provided with the presence of mind.
  • Legend Tenacity: This rune reduces the amount of time our champion can get CC. So this rune reduces our chance of dying if we’re caught in a Morgana binding or any other cc except airborne.
  • Coup de Grace: It provides us with extra damage on enemies with health less than 40%. This rune helps us chase down enemies and ensure that they don’t slither away on 1 HP.
  • Conditioning: This is a great pick that combines well with conqueror and allows you to sustain well in the game’s laning phase.
  • Overgrowth:  This rune is  fantastic for scaling into the late game as it allows you to survive a lot of end-game bursts due to increased health.


Cassiopeia AP or AD Items Guide in League of Legends

Seraph’s Embrace:

This is our core item on Cassiopeia, as she needs to be spamming her abilities to deal damage. This item helps us sustain our mana during the laning phase and mid/late game. Once stacked, our Archangel’s Staff transforms into Seraph’s Embrace.

This transformation gives us ability power equal to 5% of our maximum mana and increases our maximum mana by 5% + 2.5% AP.

Rylai’s Crystal Scepter:

Another core item for Cassiopeia is Rylai’s. This item provides us with a slow for every ability we use; it also procs on our burns/poison, thus permanently keeping the enemy slowed and allowing us to catch up with them!

Zhonya’s Hourglass:

Zhonya’s Hourglass gives us the ability to negate all damage for 2.5s by going into stasis – including damage from Ignite and Death Mark. It is Invaluable on a squishy mage like Orianna, and even better when you’re against assassins. This item also provides you with armor making you tanky against AD champions.

Liandry’s Anguish:

This is the best choice for our mythic item. On this item, dealing damage with abilities causes the enemies to burn based on their maximum health and ability power. This passive is the item version of Cassiopeia’s Q, thus, it synergizes really well with her kit. With this item, her overall damage increases by a massive amount as the burn tick resets on every Q and E.


This item works best against champions who are very reliant on their healing ability, such as Aatrox and Sylus, as it provides us with grievous wounds. Grievous wounds cause a healing reduction of 40% up to 60% when the target is below 50% of their health. Building this item provides us with a good chunk of AP and shuts down these champions.

Demonic Embrace:

Demonic embrace is another burn item, it shreds down tanks while providing us with 450 health and 60 AP. This item works the best when we’re trying a tankier and sustainable build on Cassiopeia, as it converts 2% of our bonus health to AP, which further amplifies our damage.

In League of Legends season 13, Cassiopeia cant build boots due to her passive; rather, she gains movement speed per level. This translates to more damaged items and saves our gold, which we would spend on boots.

Players should keep some other situational items in mind, such as building “Rabadons Deathcap” if they want to go with a build that can output the most damage. “Void staff” is a good pick when the opposing team stacks Magic resist. “Mejias Soul stealer” is good when you have an early game lead and are looking to snowball the game.

What Lane is Cassiopeia in Season 13?

To put it simply, Cassiopeia works best in midlane. Midlane allows Cassiopeia to scale well and have an impact on the game early on. So we would advise you to test the above build in midlane if you value your mental health.

However, a few players play Cassiopeia in the bottom lane. Her ability to take spam E makes her a high DPS champion just like any other ADC, but Cassiopeia is very squishy and weak in the early levels. This doesn’t make her a viable pick.

Final thoughts

Cassiopeia is a champion with a steep learning curve. This is why she isn’t very popular amongst midlane players. She melts through almost anything in the late game, and her burn cripples almost every squishy champion.

Also read: Is Cassiopeia Good in Solo Queue?

For the players who like a challenge and want a strong champion to master, Cassiopeia can prove to be very rewarding. We hope our guide helped you; go on, give her a go!

Also read: How to build on Blitzcrank

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