S 
Gyarados-Mega S > S (All S)
Magearna S > S (3 S, 2 A+)

A+ 
Porygon-Z A+ > A+ (All A+)

A 
Magnezone A > A (All A)
Zygarde A > A (All A)

A- 
Aegislash A- > A- (4 A-, 1 A)

B+ 
Lopunny-Mega B+ > B (All B)
Tapu Fini B+ > B+ (All B+)

B 
Magneton B > B+ (3 B+, 1 A-, 1 B)
Mawile-Mega B > B+ (4 B+, 1 B)
Pinsir-Mega B > B (3 B, 2 B-)
Victini B > B+ (All B+)

B- 
Camerupt-Mega B- > B- (4 B-, 1 C+)
Haxorus B- > B- (4 B-, 1 C+)
Krookodile B- > B- (4 B-, 1 B)
Kyurem B- > B- (4 B-, 1 B)
Sawk B- > B (3 B, 1 B-, 1 C+)
Swampert-Mega B- > B- (4 B-, 1 B)
Whimsicott B- > B (3 B, 2 B-)
Zapdos B- > B- (4 B-, 1 B)

C+ 
Ambipom C+ > B- (3 B-, 2 C+)
Gallade-Mega C+ > C+ (4 C+, 1 B-)
Pheromosa C+ > B- (3 B-, 2 C+)
Scizor-Mega C+ > B- (3 B-, 2 C+)
Tapu Bulu C+ > B- (All B-)
Type:Null C+ > B- (2 B-, 2 C+, 1 B)

C 
Blissey C > C+ (3 C+, 2 C)
Entei C > C+ (4 C+, 1 C)
Lilligant C > D (2 D, 2 UT, 1 C-)
Serperior C > B- (All B-)

C- 
Alomomola C- > C- (All C-)

D 
Araquanid D > C+ (3 C+, 2 B-)
Riolu D > D (4 D, 1 UR)
Stakataka D > D (All D)
Sylveon D > D (4 D, 1 C-)

Untested 
Diggersby UT > C (4 C, 1 UR)
Thundurus UT > C (2 C+, 2 C, 1 UR)

Unranked
Aerodactyl-Mega UR > C (3 C, 1 C+, 1 UT)
Aggron UR > Ranked alongside Mega Aggron (All with Mega)
Cofagrigus UR > UT (All UT)
Decidueye UR > UT (All UT)
Eelektross UR > UT (All UT)
Espeon UR > UT (3 UT, 2 C)
Golisopod UR > UT (All UT)
Milotic UR > UT (4 UT, 1 C-)
Regice UR > C+ (3 C+, 1 B-, 1 C)
Shedinja UR > D (All D)
Volbeat UR > UR (4 UR, 1 C-)
Weavile UR > UT (3 UT, 1 C, 1 C-)