MacroMind matchup data: real ranked games, not opinions
Cassiopeia vs Diana
Cassiopeia vs Diana in Mid: who wins more often?
Across 346 ranked games in Mid, Cassiopeia beats Diana in 50% of them.
Global ranked sample: games from every region and every rank pooled together, not one server's stats. Data runs through patch 26.12; curves updated 2026-08-07.
By 15 minutes the median game has Cassiopeia behind by 446 gold.
Cassiopeia at 15:00
- Gold: -446
- CS: +9
- XP: -78
Typical gap to Diana, from 346 games that reached 15:00.
Does Cassiopeia counter Diana?
Even on the count: Cassiopeia lands at 50% over 346 games. Neither pick wins the lane alone, so take the side you play better and use the rows below to see which early spots swing this one, then play your first ten minutes around them.
Your Cassiopeia game plan against Diana
With a gold lead at 10:00, Cassiopeia wins 61% of 150 games in this matchup. Behind at the same mark, the rate drops to 41% over 195.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 61% | 150 |
| Behind in gold at 10:00 | 41% | 195 |
| First blood | 63% | 128 |
| +kills at 10:00 | 65% | 105 |
| +CS at 10:00 | 54% | 223 |
In the median game here, the first death comes near 3:55 and level 6 lands around 5:33. Until your spike is online, treat the all-in window with respect.
Cassiopeia in Mid: the items that actually get built
Into Diana specifically, Cassiopeia finishes Rod of Ages first most often: 48.8% over 127 games of this matchup.
The most-finished core in this exact matchup is Rod of Ages, Archangel's Staff, Rylai's Crystal Scepter: 53.2% across 47 games.
The most-finished Cassiopeia core is Rod of Ages, Archangel's Staff, Rylai's Crystal Scepter: 54.2% across 2,129 games when all three got done. All matchups, patches 26.1-26.12.
Most games start Doran's Ring + Health Potion + Health Potion; the first finished item is usually Rod of Ages (5,513 games).
Skill plan: Cassiopeia players max E first and take E at level 1.