Beat magma and aqua leader, beat kyogre and groudon at sootopolis cave; beat rayquaza at skypillar; beat all regis; find latios and latias at 20 random spot and beat them, maybe u miss 1 of this?
-1 i like them limited, feels exclusive and it attract more player to play at certain event. Besides most not pvpable too, so only certain player use them on pve. Just imo :3