Cassiopeia Guardian reroll is a strong 3-cost comp in TFT Set 18. The team has a simple game plan. Build a strong frontline, then let Cassiopeia deal damage from the back.
Cassiopeia works very well in long fights. Her skill poisons enemies. The poison can also stack. Therefore, she gets stronger when she can cast many times.
This is why the Guardian trait is so useful. Guardians can take a lot of damage. They give Cassiopeia more time to cast her skill. As a result, the enemy team can slowly lose the fight.
The main goal is clear. Reach level 7 and find Cassiopeia. Then, roll for Cassiopeia 3-star and a strong 3-star tank. After that, push to level 8 and finish the team.
For more meta team comps, visit https://op.gg/tft/meta-trends/comps.

Why Play Cassiopeia Guardian Reroll?
Cassiopeia is a 3-cost champion. Her skill is made for long fights. Each cast poisons her target and another nearby enemy. The poison can stack. So, more casts mean more damage.
However, Cassiopeia needs time to do her job. She is not a fast burst carry. Instead, she needs a strong frontline. The Guardian trait solves this problem. Ornn, Leona, Shen, Rammus, Fiddlesticks, and Lillia can build the 6 Guardian trait.
This gives the team a very strong frontline. Meanwhile, Cassiopeia stays in the back and casts her skill again and again. Fiddlesticks is also very useful. He is a Guardian and works with Cassiopeia’s other trait. He can also heal and stay in the fight for a long time.
Rammus is another good tank. Therefore, you do not need to force one tank every game. Use the tank that appears more often in your shop.

Cassiopeia Guardian Reroll Team
At level 8, use these champions:
- Ornn
- Leona
- Shen
- Rammus
- Fiddlesticks
- Lillia
- Cassiopeia
- Alune
This team gives you 6 Guardians and 3 Sorcerers. Cassiopeia is the main carry. Fiddlesticks or Rammus is the main tank. Alune is the second damage dealer. She becomes more useful in the late game.
The setup is easy to play. Put your Guardians in the front. Keep Cassiopeia and Alune in the back. This lets the frontline take damage. At the same time, your carries can keep casting.
Best Cassiopeia Items
Cassiopeia wants mana and AP items. Her main goal is to cast her skill as often as possible.
A strong item set is:
- Blue Buff
- Hextech Gunblade
- Archangel’s Staff
Blue Buff helps Cassiopeia cast faster. Gunblade gives healing. It also helps the frontline stay alive.
Archangel’s Staff is strong in long fights. It gives more AP as the fight goes on.
You can also use:
- Spear of Shojin
- Hextech Gunblade
- Rabadon’s Deathcap
If you cannot make Blue Buff, Shojin is a good choice. Most importantly, Cassiopeia should have at least one mana item. Without enough mana, she cannot cast often enough.

For the main tank, Fiddlesticks can use:
- Ionic Spark
- Sunfire Cape
- Warmog’s Armor
Ionic Spark is very useful here. It helps the tank and also lowers enemy magic resistance. This means Cassiopeia can deal more damage.
If Rammus reaches 3-star first, move the tank items to him instead.
How to Play Cassiopeia Reroll
Early Game
Start with Guardians when possible. Focus on your economy. You do not need to roll a lot in the early game. Instead, use a temporary magic carry to hold Cassiopeia’s items.
Karma can fill this role. She can use your AP and mana items until Cassiopeia arrives. Add Ornn when you find him. Leona and Shen can also help build a strong frontline.
Most importantly, save your gold. Your main goal is to reach level 7 with enough money to roll.
Mid Game
Reach level 7 and start looking for Cassiopeia.
First, try to get Cassiopeia 2-star. At the same time, look for a 2-star Rammus or Fiddlesticks. Once your board is strong, save 50 gold. Then, use slow rolls above 50 gold.
This is the key part of the comp. Do not spend all your gold at once. Keep your economy healthy. This gives you more chances to find Cassiopeia.
Your main target is still Cassiopeia 3-star.
Late Game
Once Cassiopeia reaches 3-star, check your frontline. You should also have at least one strong 3-star tank. Then, stop rolling and start leveling. Push to level 8. Add Lillia to complete 6 Guardians.
Next, add Alune. She gives the team more magic damage and helps the late-game board. This step is important. Staying at level 7 for too long can make the team weaker later.
Tips for Cassiopeia Guardian Reroll
1. Play the comp when your items fit.
Tear and Rod are very good components for Cassiopeia. They help you make mana and AP items. Therefore, early AP items can be a good reason to play this comp.
2. Prioritize Cassiopeia 3-star.
Cassiopeia is the main win condition. Rammus and Fiddlesticks are also useful. However, do not spend all your gold trying to 3-star both tanks.
3. Use the tank you can upgrade first.
You do not need to force Fiddlesticks. You also do not need to force Rammus. If Fiddlesticks appears often, use him. If Rammus appears more often, invest in him instead.
4. Put Ionic Spark on the frontline.
Cassiopeia deals magic damage. Therefore, the magic resistance reduction from Ionic Spark is very useful. It helps your whole team deal more damage.
5. Do not wait for perfect items.
Blue Buff and Shojin can both work. Many AP items are also useful. So, do not hold your items for too long. Making a good item early can help you save HP.
6. Do not level too early.
If Cassiopeia is still 2-star and close to 3-star, keep rolling at level 7. Only level up after your carry reaches the needed power level.
7. Do not forget Alune.
Alune gives the team more damage in the late game. She can also use extra AP items. Therefore, she helps Cassiopeia carry less of the team’s damage alone.

When Should You Play This Comp?
Cassiopeia Guardian is best when you have good AP items and early Cassiopeia copies. You should also check the lobby. If many players are buying Cassiopeia, this comp becomes harder to play. You may spend too much gold without finding enough copies.
However, the comp can be very strong when Cassiopeia is uncontested. The biggest weakness is the need for a 3-star carry. The team can struggle before Cassiopeia reaches that power level.
Final Thoughts
Cassiopeia Guardian reroll is a strong 3-cost comp in TFT Set 18. The plan is simple. Build your economy early. Reach level 7. Then, slow roll for Cassiopeia 3-star.
At the same time, upgrade Rammus or Fiddlesticks. Once Cassiopeia and a strong tank reach 3-star, push level 8. Finally, add Lillia and Alune to complete the late-game board.
With good AP items and an uncontested Cassiopeia, this comp can become a very strong choice. The Guardians hold the frontline. Cassiopeia then has enough time to stack poison and take over the fight.
Read more:
TFT Set 18.3: All Major Changes You Need to Know
TFT Set 18.3: 5 Powerful Comps You Need to Try
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