EDIT: Huge shoutout to @ERNESTO JG!
Ones I am looking for:
Hatterene, Grimmsnarl and Blissey from this event.
Scizor, Hydreigon and Blissey from this event.
Gimmighoul from this event.
Chesnaught, with the Rock Tera type, Great Tusk, & Iron Treads from this event.
Chesnaught, with the Rock Tera type, Walking Wake, & Iron Leaves from this event.