>>25352895i was thinking of a combination hazards plus something like a Red Card
go for Roar, the opposing pokemon attacks you and activates the Red Card sending out the supposed mega evolving ace that takes all that hazard damage AND on the same turn it gets Roared out so it's gonna take more damage when it comes out again (you could also try again with another Red Card)
Not sure if my autistic calcs are correct though, i may just be retarded and not aware of how things actually work