so the good things about ditto- it allows the team to set up spikes vs spikestack. it gives the team some means of keeping sd low kick decidueye in line. it lets u scout opponents sets. thats about it.
super good mon on any team, and stall is no exception. resttalk w boots is fantastic in general and gives cof good sustainability. im running psychic > body press w sp def investment bc fuck specs croak, basically. thing is a nightmare for stall. super good blanket check for half the tier, not much else to say other than a more dedicated croak check and phys def w body press is probably more optimal.
also feels like a kinda mandatory pick for stall atm, it keeps the ghosts and grasses in line. boots is definitely an option for teams running decidueye + spikes bc goss will not be able to get the hazards off until decid is gone. another good blanket check for a lot of the tier. ideally this would be sp def w timid nature to outpace timid decid but with cof and quag heavily invested in sp def running phys def is kinda needed to help keep kangaskhan in line.
spin + cleric + water resist. specs basc can still be a pain bc ice beam 2hkos, but as long as u dont play this recklessly in that mu you should be fine. i like protect a lot here bc it lets you scout what move specs croak and decid lock themselves into, as making one wrong prediction vs those two can mean miltank or cof get damaged beyond repair. also can be useful to rack up tox damage on some things.
insert unaware mon. im much more invested in sp def bc skuntank can present an issue otherwise. the evs + protect should help insure skunk isnt able to just flinch you down. obviously the chance is still there, but your opp will need 2 or possibly 3 in a row instead of just one. tect is also nice for scouting specs decid, and w the evs, it makes magneton easier to deal with and you can possibly take on a toxic'd rotom-frost at full, if necessary. you can maybe run curse here as well to make the malamar matchup easier but its not a particularly good mon rn and as such i feel less need to prep for it specifically. if you end up going phys def on cof its completely unnecessary imo
ice resist was crucial for the last since abomasnow and rotom-frost kinda just run through the team otherwise, and this does the best job available.