Let's just say, those old classmates who used to complain about Su Mucheng's poor gaming skills were particularly keen to play Kings of Glory with her during that period.
It wasn't anything specific, just that whenever Su Mucheng entered the game, in seven or eight out of ten rounds she could find an excuse to make someone or even several people on the opposing side lose their cool, and then they'd start attacking without regard for winning or losing. Meanwhile, their Chengzi would be unaffected, running all over the map, and suddenly their win rate shot up.
More importantly, after winning, they could still complain about the opposing side.
After all, Su Mucheng truly never swore, she wouldn't even mock the opponent for being bad.
It was just Dou Dou who, from the beginning of the game, kept giving the opposing side 'friendly' advice in the public chat channel about what they were doing wrong.