Team 4:

Shiny Metagross (Steel/Psychic)

Mega Tropius (Nice art kudos who done it.) (Grass/Flying)

Heracross (Bug/Fighting)

Froslass (Ice/Ghost)

Houndoom (Dark/Fire)

Alolan Ninetales (Ice/Fairy)

Team 5:

Mega Armaldo (Rock/Bug)

Corviknight (Flying/Steel)

Machamp (Fighting)

Mimikyu (Ghost/Fairy)

Mega Lopunny (don't ask.) (Normal/Fighting)

Gardevoir (Psychic/Fairy)

Team 6:

Shiny Decidueye (Grass/Ghost)

Primarina (Water/Fairy)

Cinderace (Fire)

Shiny Inteleon (Water)

Mewtwo both with Mega X and Y (Psychic and Psychic/Fighting)

And shiny Mega Rayquaza (Dragon/Flying)