I decided to make a Baton Pass team after I finished E15. I'm looking forward to trying it out on future gym battles (it works great against the Grand Hall trainers though! lol). Obviously, against teams with access to haze or double battles, this team is shit, but it should be fun to have in the wings in case my main squad is running into issues.
Here it is: Smeargle(your lead): Ingrain, spore, substitute, Baton Pass
Drifblim(alternate lead): Minimize, substitute, Baton Pass, amnesia
Scolipede (Speed Boost): Iron Defense, Protect, Agility, Baton Pass
Gligar: Swords Dance, Knock off, Substitute, Baton Pass
Metagross (or anything else, really): Meteor mash, zen headbutt, hammer arm, coverage move of choice.
There's room for one more pokemon, but I couldn't think of anything else it needs. HM slave I guess?