Should You Main Cassiopeia? Tier A
Yes. Cassiopeia is tier A for maining. 11 Challenger and 8 Grandmaster mains across Korea, Europe West and North America, on 214,071 games played worldwide.
Reviewed for League of Legends patch 16.15.
Verdict. Cassiopeia scores 8.77 high elo mains per 100,000 games played, against a median of 2.26.
The numbers
Score 8.77 high elo mains per 100,000 games played, ban-adjusted · 11 Challenger · 8 Grandmaster · 90 tracked mains in KR, EUW and NA · 214,071 games played worldwide · 2.32% pick rate · 1.16% ban rate
What this means
From the video: Vambient's breakdown, lightly cleaned from speech
Cassiopeia next up, we're going to place her in a tier. So Cassiopeia is one of the champions that I think you're going to have a lot of success on if you made this champion. There's a lot of challenger and grandmaster representation for challen for Cassiopeia.
There's very little ban rate. There's it's about the same pick rate as Akshan. And you're going to have great success on this champion.
There's 11 challengers on a 2% pick rate and eight grandmaster players. So, you're essentially going to be able to pick her and you're going to be able to play her and you're going to be able to reach the top with her. And it's not too mechanically intensive.
I mean, it's fairly mechanical, but I used to play Cassiopeia a little bit. I had decent success on her as well. Cho'Gath unfortunately is going to go into the C tier.
How this was measured
Two numbers, one division. First, how many players are currently in Challenger or Grandmaster maining this champion in Korea, Europe West and North America, from onetricks.gg. Second, how many ranked games the entire playerbase plays of this champion worldwide across every rank, from op.gg. The result is high elo mains per 100,000 games played, then reduced by the champion's ban rate, because a champion you cannot pick is a champion you cannot main.
This is not a win rate list and it is not a patch strength list. It measures availability-adjusted high-elo main density: how much Challenger and Grandmaster main representation a champion has relative to how often it is played. It is not the probability that maining this champion will get you to high elo. The score counts Challenger and Grandmaster mains only, drawn from a tracked pool that starts at Master; it does not include the Chinese server, and it counts accounts rather than people, so one dedicated player with several high elo accounts shows up more than once. Patch 16.15. The full plain English explanation, including everything this list cannot tell you, is on the main list page.
Popularity is not the signal. What matters here is how densely high elo mains appear relative to how often the champion is played.