To start off the team I of course went with the mandatory core of Muk and Probopass, opting for CurseTalk with Gunk shot and offensive trapper probo with an air balloon for the ability to safely switch into metang one time and be able to heavily damage Golem in a lead position vs it alongside its normal capabilities. To start off the actual teambuilding I added Quilladin for its ability to counter/check a myriad of physical attackers, important ones being physical Floatzel and Golem. The reason I didn't go with tangela who does a similar job but better is Spikes, allowing for the pivoting of Probo to be more effective as well as let Muk at least pressure grounded mons (steels importantly) to come in for a guaranteed 12%+ damage so not a total loss of momentum. Next came Grumpig for its useful resistances, countering regice and checking all fire types as well as handling Psychics like Mime who would focus blast probo otherwise. T-wave was used over taunt to emergency check mons and slow certain ones (not steels ofc) for Muk like beheeyem who grumpig can't exactly handle well. Now looking at the team theres an issue with special waters, while grumpig and Muk both handle them decently keeping them healthy is key to handling mons like rotom-f who can freely pivot on the team, so I went with politoed to counter the special waters in the tier bar chinchou, but encore was added to help suffocate it from doing much other than staying healthy. Lastly the team is slow and Dodrio instantly came to mind for several reasons, it works great with probo the same way probo does with muk, but it can actually damage the steels types which I'll talk about later on when discussing the spreads.
Probopass and Politoed are the only non-standard spreads but they are for what I'd like to think are good reasons. Knowing defensive mawile is 136 uninvested, with a chance to run 8 speed evs without changing its bulk (248 HP, 252 def +, 8 speed) so I ran enough speed to trap it before it can baton pass away from probo and nail it with earth power. Unfortunately to maintain the bulk I had to drop Spa so its not as strong but it gets the job done, the spikes from quilladin and with mawile as the main dodrio answer a team would have its sure to get in range of Earth Power.
132+ SpA Probopass Earth Power vs. 248 HP / 0 SpD Mawile: 214-252 (70.6 - 83.1%) -- guaranteed 2HKO after Stealth Rock
(214, 216, 218, 220, 224, 226, 228, 230, 234, 236, 238, 240, 244, 246, 248, 252)
3 layers of spikes guarantee the KO.
Politoed is simply speed creep for modest/adamant cacturne.