Uber Stall Check List:
Have switch-ins to the major Ubers?
Have a special wall?
Have a physical wall?
Have resistances to Dragon, Ice, Electric, Dark, Ghost, Bug, Fighting, Ground, Water, Fire, Steel, and Rock?
Have a spinner?
Have a phazer?
Have a weather changer?
Have a user of Spikes / Stealth Rock?
Have a Sleep Talk user?
Have a spinblocker?
Uber Offense Check List:
-Resistances or immunities to the following types: Dragon, Electric, Water, Fire, Ice, Ground, Ghost, Dark, Flying, Fighting (Ones in bold are almost critical)
-A way to break stall
-A check to fast sweepers as a backup
-A Swords Dance Normal Arceus check
-A Kyogre switch-in
-A Psystrike Mewtwo check
-A way to check weather teams or other weather effects
Not Necassary but if you had it your team would be better Check List:
-A Pokemon to set up entry hazards
-A Spinblocker
-A status absorber
-A Rapid Spinner
-Wobbuffet