>>18986103There are a lot of problems, but I'll try to fix this. You're trying to use a defensive team, so you shouldn't use anything offensive at all, it actually hurts the team trying to splice in multiple play styles.
Chesnaught doesn't really appreciate Sub, it likes Spiky Shield much more on its seeder set. Hammer arm also generally has more utility than EQ.
Heatran is a defensive staple on a defensive team... but you're running an offensive set. Change it to max SpD, and run like, Lava Plume/Roar/Protect/filler. Toxic, EP, Ancient Power, WoW, etc are all good options in that last slot.
Vaporeon is ok I guess. You need some anti-baton pass shit, so try Haze > Roar and Protect > Heal Bell (Chansey will become the Cleric, here).
Gliscor is awful on Stall. Skarmory fits his role so much better, it's def worth switching to. It might seem counter intuitive to run that on a team with Spikes, and Skarm as an SRer, but run Defog on Skarm. They're probably going to defog or spin your hazards somewhere along the line, so prepare for that and have Defog to remove their hazards too.
Light Screen Chansey might be the worst set I've ever heard. Just run Wish + Softboiled and put Aromatherapy > Toxic and make it the team's Cleric.
Get rid of Medicham, it's literally only weighing your team down. You're better off having another mon to tank hits and just stalling your opps to death. Aegis, Sylveon, and Clefable are good places to start looking for a replacement.