MacroMind matchup data: real ranked games, not opinions
Diana vs Cassiopeia
What is Diana's win rate vs Cassiopeia?
In Mid, Diana wins 50% against Cassiopeia across 346 observed ranked games.
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 Diana ahead by 447 gold.
Diana at 15:00
- Gold: +447
- CS: -9
- XP: +78
Typical gap to Cassiopeia, from 346 games that reached 15:00.
Does Diana counter Cassiopeia?
Too close to call. Diana sits at 50% over 346 games, so neither pick counters the other here. The lane goes to whoever wins the spots below, like the gold lead at 10:00 or staying alive until 15:00, so play for those and let the pick argument go.
How to beat Cassiopeia as Diana
When Diana is ahead in gold at 10:00, this matchup runs 59% over 195 games; behind, it drops to 39% over 150.
| The spot | Win rate | Games |
|---|---|---|
| Ahead in gold at 10:00 | 59% | 195 |
| Behind in gold at 10:00 | 39% | 150 |
| First blood | 59% | 208 |
| +kills at 10:00 | 61% | 183 |
| +CS at 10:00 | 59% | 116 |
| 0 deaths at 10:00 | 68% | 62 |
The median first death in this lane comes at 4:28; the level 6 spike lands around 5:33. Respect the all-in window until your spike is online.
What does Diana build in Mid?
Into Cassiopeia specifically, Diana finishes Stormsurge first most often: 52.6% over 95 games of this matchup.
The most-finished Diana core is Stormsurge, Shadowflame, Zhonya's Hourglass: 53.1% across 5,645 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 Stormsurge (17,020 games).
Skill plan: Diana players max Q first and take Q at level 1.