Mega bellossom

Typing: grass/fairy
Ability: dancer

Mega froslass (elegant form)

Typing: Ice/fairy
Ability: pixelate

Mega froslass (beauty form)

Type: ice/dark
Ability: snow warning

Mega froslass (frost form)

Ability: ethereal (new!): physical moves deal 1/4 less damage

Mega torterra

Ability: thick fat

Mega nintails

Type: fire/fairy
Ability: drought

Mega alolan ninetails

Ability: snow warning

Mega liligant

Type: grass/fairy
Ability: contrary

Mega stoutland

Ability: defiant

Mega roserade

Ability: infiltrator

Mega vivilon

Type: bug/psychic
Ability: confusing pattern (new!) when hit by a special attack, confuse the attacker