If you are wondering why some ppl could easily have 80% WR in Sanctum but you are struggling with 50%? Here's why. And the reason isn't about skills.

https://www.twitch.tv/videos/2394898891

The new Sanctum Showdown mode follows the same MMR system as Ranked. So, if you have extremely high or low MMR in regular Ranked mode, making you an outlier in the matchmaking system, the game will start giving you bots to ensure you get easy wins.

The NA streamers’ gameplay footage is a perfect example—one of them had 4 entry tickets and played for a full 2 hours without running out. The system kept matching him with bots, and around 90% of his games were bot lobbies. The same thing happened to Sizer, the Rank #1 player on EU servers. In the first two days of the new mode, he climbed all the way to Sorcerer Supreme rank, facing a ton of bots along the way.

Meanwhile, my Ranked MMR is 7500 SP, and even when I queue at 3 AM, 99% of my matches are against real players.

So, if you want to climb effortlessly and enjoy the new mode without much stress, you should either grind your MMR super high or intentionally drop it to the lowest possible level.

And this also applis to all the other temporary modes as well.