Used the DB since I’m guessing it’s accurate enough for the lower BST Mons.
Teal Mask:
1: Kricketune-384
2: Ariados-400
3: Pachirisu-405
4: Sudowoodo-410
5: Furret-415
6: Mightyena-420
7: Quaqsire, Volbeat, Illumise, Magcargo-430
8: Morepeko-436
9: Arbok-448
10: Sandslash-450
Source
Indigo Disk:
1: Smeargle-250
2: Luvdisc-330
3: Plusle, Minun-405
4: Dugtrio-425
5: Minior, Rotom (base form)-440
6: Sandslash, Granbull, Venomoth-450
7: Araquanid-454
8: Hitmonlee, Hitmonchan, Hitmontop-455
9: Zangoose, Seviper-458
10: Lanturn, Lumineon, Cramurupt-460
Source2
Hope this helps!