Aurelion Sol vs Cassiopeia MID Matchup Guide | LaneStomp

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Aurelion Sol

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Mid

Cassiopeia

Aurelion Sol vs Cassiopeia

Confidence mediumUpdated Jun 10, 2026

Overview

Prioritize farming safely to reach your mid-late game power spikes and upgraded (R).
Maintain medium lane pressure with poke but avoid extended trades to limit Cassiopeia's sustained damage.
Deny Cassiopeia's poison stacks by using (E) into (Q) poke to prevent her from starting extended fights.

Trading pattern

Trade by landing (E) then (Q) poke, avoiding extended fights where Cassiopeia can stack (E) damage.
Punish missed (Q) or poorly timed (W) to disrupt her poison application and force her off the wave.
Avoid trading when (R) is up and you are facing her to prevent getting stunned or slowed.

Danger windows

Vulnerable before full kit; Cassiopeia can punish early all-ins with (W) grounding and (R) stun.
Avoid facing Cassiopeia directly when (R) is available to prevent crowd control.
Watch for (W) usage that grounds your (W) mobility and follow-up (E) damage to avoid bad trades.

Early game

Use (E) into (Q) for poke and waveclear to keep Cassiopeia from applying poison early.
Avoid all-ins before completing your core kit to prevent getting punished by her (W) and (R).
Respect Cassiopeia's level 6 (R) stun by not facing her directly when it's available.

Power spikes

At 75+ stacks, your upgraded (R) enhances teamfight impact; play for safe farm and fights then.
Completing Rylais increases your control and chase potential; pressure waves and trades more confidently.
Cassiopeia's level 6 (R) and first mana/AP item spike increase her sustained threat; play cautiously around these.

Win conditions

Survive early pressure and scale into upgraded (R) and Rylais for stronger teamfight and roaming presence.
Use (E) and (Q) poke to deny Cassiopeia's poison stacks and extended trade windows.
Punish missed (Q) or (W) cooldowns to gain lane control and pressure her scaling path.