Like what does it mean? I don't get it.
The official competitive format is called 'vgc' or video game championships and the thing is divided into series which runs in a period of time. Each series comes with its own set of rules and series thirteen is the current series which will last until october thirty one of this year. Its rules are as follows
Singles Ruleset
Pokémon Restrictions: Available National Pokédex, (if they have Galar Mark or Battle Ready Mark Pokémon Limits: Team of 3 to 6 Pokémon from Level 1 to Level 100. All Pokémon then set to Level 50 Battle Time: 20 Minutes Your Time: 7 Minutes Team Preview: 90 Seconds Turn Time: 45 Seconds
Doubles Ruleset
Pokémon Restrictions: Available National Pokédex, (if they have Galar Mark or Battle Ready Mark Pokémon Limits: Team of 4 to 6 Pokémon from Level 1 to Level 100. All Pokémon then set to Level 50 Battle Time: 20 Minutes Your Time: 7 Minutes Team Preview: 90 Seconds Turn Time: 45 Seconds