

Aurora vs Cassiopeia Counter Pick
Matchup Summary
What the Data Means
Cassiopeia sits at the maximum difficulty rating in the game, a 10, and her passive, Serpentine Grace, makes every point of Move Speed she buys count for more than it would on another champion — yet none of that turns into an advantage against Aurora, who still wins 54.5% of these games. Cassiopeia’s Miasma lays overlapping poison clouds that ground anyone caught inside, canceling dashes and blinks, which should in theory shut down Across the Veil’s escape — but only if she lands it first.
Twin Fang, her core damage tool, deals bonus damage to poisoned targets and heals her on hit, rewarding patient trading over Miasma’s zone control, while Aurora’s own Twofold Hex threatens a second instance of damage on recast without needing a setup ability first. Both champions deal entirely magic damage and share a 550 attack range, so neither holds a distance edge; the difference shows up in how many steps each kit needs before it starts working. Across 211 games on patch 16.13.1, Aurora wins against Cassiopeia at that rate, rated Easy. Move speed is identical at 335 for both, so neither side gains ground in a straight chase — positioning around Miasma’s zones ends up mattering more than raw mobility.
FAQ
Yes — Aurora holds the statistical advantage in this matchup. Aurora wins 54.5% of the recorded games.
54.5% from Aurora's perspective, measured on patch 16.13.1.
211 ranked games at Emerald rank and above, across all regions.
The current Aurora build — items, runes and skill order from the same data set — is on the Aurora build page.