what to do after beating the elite four in pokemon sun?
['Go catch all the Ultra Beasts. ... ', "Don't forget to catch Necrozma. ... ", 'Get Cosmog, the cutest new legendary. ... ', 'Grab the mysterious, one-of-a-kind Type: Null. ... ', 'Collect the legendary Tapu Pokémon. ... ', 'Check out the Battle Tree. ... ', 'Get really into Battle Royal. ... ', 'Visit Festival Plaza.']