The most successful core build for Cassiopeia Top is Rod of Ages, Rylai's Crystal Scepter, and Archangel's Staff, which maintains a 56.3% win rate. Another viable option includes Archangel's Staff, Liandry's Torment, and Rylai's Crystal Scepter with a 51.9% win rate. For boots, the data recommends Boots of Swiftness which has a 51.9% win rate and a 41.7% pick rate.

The recommended rune setup is the Conqueror path from the Precision tree, which has a 54.6% pick rate. Take Presence of Mind, Legend: Haste, and Last Stand as primary runes, with Sorcery secondary for Manaflow Band and Transcendence. This configuration currently holds a 48.8% win rate.

Cassiopeia is currently ranked in the B tier for the Top lane position. This ranking is based on a win rate of 48.8% and a low pick rate of 1.1% in Platinum+ games. Her carry score is also relatively low at 4.3 out of 10.

Her general win rate in the Top lane is 48.8% across 518 games analyzed in Patch 16.2.1. However, players who use specific core builds can see win rates as high as 56.3%. Her build-specific win rate overall is slightly higher than her base at 49.8%.

While our data comes from Platinum+ games where she is B tier, her 10/10 difficulty rating makes her a risky choice for lower elo players. She has a low carry score of 4.3/10, suggesting that without high mechanical skill, she may struggle to impact the game. Success likely depends on mastering her complex E and Q interactions.

She is a niche specialist pick with a low pick rate of 1.1% and a very high difficulty of 10/10. However, those who master her can achieve a 60.6% win rate by following the E > Q > W skill max order. Her high ban rate of 2.2% relative to her pick rate suggests she can be quite oppressive in the right hands.

Her 48.8% win rate is likely held back by her extreme 10/10 difficulty and a low carry score of 4.3/10. Even though she received no nerfs in Patch 16.2.1, her performance remains in the B tier. She requires precise execution of her Conqueror-based playstyle to be effective in the current meta.

Rylai's Crystal Scepter is the best first item with a 55.2% win rate and an 11.2% pick rate. It is highly effective because it allows Cassiopeia to kite enemies more easily and secure kills with her E spam. Starting with Doran's Ring and two Health Potions provides the necessary lane sustain to reach this item.

Cassiopeia is best picked by players who are comfortable with a 10/10 difficulty champion and can manage her high mana needs. She is a solid choice when your team needs a Mage and you can utilize Flash and Ignite for early pressure. With a 1.1% pick rate, she functions well as a niche counter or specialist pick.

Her primary power spike occurs once she completes Rylai's Crystal Scepter and begins maxing her E, resulting in a 60.6% win rate for that skill order. During this time, you should use the slow from Rylai's to land Q more consistently and reset your E damage. Use Ignite to capitalize on this mid-game strength for solo kills.

She excels most in the mid-game once her E > Q > W skill order is underway and she has finished core items like Rod of Ages. Her core three-item build reaches a high 56.3% win rate, indicating strong performance as she scales. However, her early game is challenging due to a 10/10 difficulty rating and the need for mana management.

Cassiopeia received no changes to her kit in Patch 16.2.1. Additionally, there were no item changes affecting her recommended core build items during this patch. Her statistics and performance metrics remain stable compared to previous periods.

The data shows Conqueror is the dominant primary rune with a 54.6% pick rate and is generally reliable for most matchups. While specific secondary adjustments aren't detailed, the standard Sorcery secondary with Manaflow Band and Transcendence provides essential scaling and mana. Stick to this core setup for the most consistent results across different encounters.