I think the best thing to do is that as soon as an alpha swarm comes out, its ability is prohibited for all tiers for a period of 6 hours or 12 hours, so that it cannot be used immediately in the tournament on duty.
I think that the best nerf you can do to Serperior would be to remove the evasion bost for clearing, until the HA of Crobat, Chandelure, Xatu, etc. arrive.
It is not necessary, the same goes for Ursaring Granbull with fast feet, they use toxiesphere instead of flamesphere to increase their speed, it is what it is.
IGN: Hernjet
Preferred Tiers: LC OU / LC UU
Competitive accolades : The previous psl cost 13 cr B)
Discord contact: Hernjet #1754
Fluff:I want to go to the quarterfinals
Preferred/Least Preferred Potential Manager: Buy me the most likely it will be cheap