Primarina moved from UUBL to OU
Ninetales-Alola moved from UUBL to OU
Shuckle moved from PU to OU

Keldeo moved from OU to UU
Pelipper moved from OU to UU

Xatu moved from RU to UU

Corsola-Galar moved from UU to RU
Dugtrio moved from UU to RU
Torkoal moved from UU to RU

Turtonator moved from NUBL to RU
Drampa moved from NU to RU

Kingler moved from RU to NUBL
Avalugg moved from RU to NU
Boltund moved from RU to NU
Gurdurr moved from RU to NU
Morpeko moved from RU to NU
Rotom moved from RU to NU
Silvally-Ghost moved from RU to NU
Silvally-Steel moved from RU to NU

Corsola moved from NU to PU
Farfetch'd moved from NU to PU
Golurk moved from NU to PU
Meltan moved from NU to PU
Mr. Mime-Galar moved from NU to PU
Rapidash-Galar moved from NU to PU
Stunfisk moved from NU to PU

Dusknoir moved from ZU to PU
Gourgeist moved from ZU to PU
Pyukumuku moved from ZU to PU
Silvally-Bug moved from ZU to PU
Silvally-Electric moved from ZU to PU
Dusclops moved from NFE to PU
Mareanie moved from LC to PU

Persian moved from PU to ZU
Pincurchin moved from PU to ZU
Slowpoke-Galar moved from PU to ZU

https://www.smogon.com/forums/threads/usage-based-tier-update-for-june-2020.3665378/