A comprehensive Cassiopeia mid-lane build guide focused on optimal performance in Emerald+ ranked games.

Core Build (53.8% Win Rate)

• Summoner Spells: Flash, Teleport
• Starting Items: Tear of the Goddess
• Core Items: Rod of Ages → Archangel's Staff → Rylai's Crystal Scepter
• Final Items: Liandry's Torment, Rabadon's Deathcap
• Skill Order: E > Q > W

Optimal Runes

• Primary: Conqueror, Presence of Mind, Legend: Haste, Last Stand
• Secondary: Manaflow Band, Transcendence
• Shards: Adaptive Force (x2), Health Scaling

Strong Matchups (Over 55% Win Rate)

• Smolder (62.5%)
• Corki (57.4%)
• Swain (56.4%)
• Yone (56.0%)
• Yasuo (55.7%)

Weak Matchups (Under 47% Win Rate)

• Vel'Koz (46.5%)
• Syndra (46.6%)
• Qiyana (46.7%)
• Naafiri (46.8%)
• Zoe (47.1%)

Key Tips

• Monitor mana usage carefully in early trades
• Only commit to trades after landing Q
• Strong level 2 all-in potential with Q-E combo
• Best jungle synergy with Rammus (58.7% win rate) and Rek'Sai (57.2%)

Alternative Build (56.6% Win Rate)

• First Item: Rylai's Crystal Scepter
• Core: Archangel's Staff → Liandry's Torment
• Final Items: Zhonya's Hourglass, Rabadon's Deathcap
• Same runes and skill order as core build

Situational Items

• Adjust defensive shard (Armor/Magic Resist) based on lane opponent
• Consider Zhonya's Hourglass against heavy AD threats
• Build path may vary based on team composition and game state

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