This guide has not yet been updated for the current season. Please keep this in mind while reading. You can see the most recently updated guides on the browse guides page
Cassiopeia Build Guide by thekatalist
CassiOPeia, The Serpents Embrace
Your votes and comments encourage our guide authors to continue
creating helpful guides for the League of Legends community.
Currently a work in progress!
Will continue to fill it out as time goes by!
So tips and tricks
How such cheese
Added Mid Game and Late game, along with first couple match ups, will be doing one for most champions that you will see mid lane.
I feel like I am able to make the greatest contributions to the team from mid lane, which is probably why I like playing it so much!
I have a 60% win rate in ranked with all of them except for Syndra, who I haven't really had the chance to play yet
+ Has a lot of kill potential
+ High snowball potential
+ AOE stun/slow ult can win entire games
+ Farms easily
+ Built in slow
+ Highest level 2 damage potential in the game, dat cheese
- Higher learning curve than most champions
- Not noob friendly
- Ultimate stun unreliable
- Will take time to master
Although she requires a couple games to get used to her playstyle and time for you to master her, I believe that Cassiopeia has the highest reward out of all the champions if mastered.
She has a built in slow ( Miasma, and a ridiculous AOE stun as her ult ( Petrifying Gaze) that will easily win you a teamfight, even if your team is behind.
If you get the hang of Cassiopeia, climbing in ranked should be extremely easy!
Here are my stats with Cassiopeia:
This is what happens when you work with your team, paying attention to what happens in your jungle and press your advantage!
Please remember that my way of playing Cassiopeia may not be the best way for YOU to play Cassiopeia! Please do not take this guide as the law! If the other team has a triple AP comp, BUY MAGIC RESIST! Every item should be bought situationally, I only wish to share this guide because it is the build that works for ME.
Ignite gives Cassiopeia a lot of kill potential in lane, will almost guarantee a kill level 2 if played right!
Barrier can replace Ignite, it is up to the individual player and depending on their playstyle, can set up some really sick baits!
This is an extremely important part of Cassiopeia's kit, if she did not have this passive, her mana costs would be too high to spam Twin Fang constantly. If you buy a Tear of the Goddess, make sure you guys keep the passive at the maximum amount of stacks! (5)
Noxious Blast: After channeling for 0.6 seconds, Cassiopeia blasts an area with a delayed high damage poison, granting her movement speed if she hits a champion. (80% AP ratio)
This is your wave clear, along with Miasma. Since this is a DoT, most players you play against wont be able to predict the amount of damage it will do. Very often people will Flash too late with the poison on them + Ignite expecting to get away free. Thankfully most of the time they also die : D This is the ability you will be using to constantly keep the other team poisoned so you can Twin Fang them.
Miasma: Cassiopeia releases a cloud of poison (more like she spits a puddle of poison), lightly damaging any enemy that happens to pass through it. (15% AP ratio)
An under appreciated spell, Miasma will grow in size over time dealing "tons of damage" I find this skill extremely useful when I play against assassins like Kha'Zix and Zed. When they dodge Noxious Blast and try to go all in for the kill, drop Miasma right under them and spam Twin Fang! The built in slow is also extremely useful when you need to kite multiple opponents. Try to force them to walk through the entire length, much like Viktor's Gravity Field.
Twin Fang: Cassiopeia lets loose a damaging attack at her target. If the target is poisoned the cooldown of this spell is refreshed (to a 0.5 second cooldown). (55% AP ratio)
This ability is pretty straight up, I do not think much explanation is needed for this beautiful skill. A single target nuke that does massive damage that can be spammed if you hit a poisoned target. Keep in mind this will refresh when you hit someone poisoned by Singed, Teemo and Twitch. The closer you are to the target, the faster Twin Fang will hit them, which means the closer you are to the target, the higher the dps. This ability is where most of Cassiopeia's damage will be coming from.
Petrifying Gaze: Cassiopeia releases a swirl of magical energy from her eyes, stunning any enemies who are facing her and slowing any others with their backs turned. (60% AP ratio, 2 second stun or 60% slow)
Land a perfect Petrifying Gaze in a teamfight and you will almost always win that fight. A 2 second AOE stun + nuke with massive amounts of damage and a decent AP ratio can turn the tide of any battle. This ult will take some time getting used to, the range will feel awkward for the first couple times you use it, if you have to wonder if you are close enough to use it, you probably aren't! Don't be afraid to flash to hit a point blank ult.
These are the runes that I use the most. The scaling health seals are just preference, flat magic resist runes can be used to replace it, however, 12MR gives you an extra 3% less magic damage taken, really not that much at low levels!
These are for when you play against an AD mid lane, or anyone that will be able to harass you constantly with auto attacks.
This last one is really situational, my friend, also a Cassiopeia player introduced this idea to me and I could barely feel a difference in my Twin Fang damage.
On the caster minions and cannon minion. Be sure to try and last hit the ones in the front + get the cannon minion. If you aren't sure if you will be able to last hit the cannon minion, do not be afraid to Twin Fang it! Now doing this will push lane, so make sure you stay aware of where the enemy jungler is so you don't get caught out!
Whenever you see an opportunity to throw down your ult, and hit more than one person, do it!
If you can only land Petrifying Gaze on their fed AD carry, do it!
Obviously it is not a good idea to be wasting this impactful ultimate on an 0/20 support.
You can also use this to disengage any teamfight your team does not want to fight (4v5 top lane while your wonderful AD carry is farming wolves? Ult to disengage!)
For a two second stun, Petrifying Gaze is also amazing when you want to peel for your AD carry!
Double Doran's Ring's should be able to keep your mana high as long as you last hit properly.
Whenever you see an opportunity for kills, head in that direction. Make sure you look for any lanes you can gank, or help you jungler if he is fighting the other jungler!
Buy a Stealth Ward and ward their blue bush so your jungler can smite it to deprive their midlane of blue buff. A good place for you to place a Vision Ward is in the bush across the wall from your teams Elder lizard . I always try to keep a ward there whenever I have an extra 100 gold to spare. Most of the time, will stay in the bush for almost the entire game before the other team destroys it. It provides so much vision and will win you teamfights.
Once you team decides to start having some small scrims, make sure you always are aware of where the rest of the team is. If you are chasing someone into a bush, throw a trinket ward or Miasma before walking in. If a kill feels too easy to be true, it probably is.
One of Cassiopeia's many strengths is her ability to siege turrets. She is able to block off certain areas under the enemy turret effectively zoning them with Miasma and quickly clear waves with Noxious Blast spam. Tell your AD Carry to constantly poke at the turret to take it down. Cassiopeia is better than other AP mages at sieging turrets since she is able to easily disengage with her ult and sometimes even tower dive when the other team is stunned. There is just so much versatility in her kit.
Cassiopeia is also able to deal tons of sustained damage as long as she has enough mana. Grab blue buff and clear Baron nashor of any Stealth Wards.
Tell your team to distract the other team mid lane (but not engage) and you can easily duo a quick Baron with your jungler's help. Do not be stupid about this, if you have a jungle teemo that's building full AP, do not do it.
I have been asked by many people who wonder why I would get Rod of Ages over the more commonly bought Tear of the Goddess
I have played countless games with Cassiopeia and rarely do I ever see Tear of the Goddess get turned into an Archangel's Staff. Stacking the Tear of the Goddess is not really the issue, as many people assume. Another benefit to Rod of Ages is that it gives you quite a bit of tankyness. This is extremely important and will make the enemy team think twice before diving/engaging on you.
Very mixed feeling's about this item. Liandry's Anguish used to be a ridiculously strong item (preseason 3 madness), it's in a decent spot right now and it give good magic pen and damage based on current health of the target. I usually get this only if I need the health shred.
An amazing item of Cassiopeia. She is able to constantly reapply the slow with her E and keep up with whoever she wishes to delete thanks to Noxious Blast. Rylai's Crystal Scepter give's Cassiopeia a lot of kiting power. You will be able to kite most champions without any issues!
Abyssal Mask itself give's really good starts, even without the unique passive. There are better items that suit Cassiopeia, however, I do recommend getting this item if you are getting bursted really hard (most of the time your Rod of Ages and Rylai's Crystal Scepter will prevent you from getting instagibbed) or if they have two or more heavy magic dealers. If I had to, I would replace Liandry's Anguish for this item.