Question: what to do after you beat the pokemon league in pokemon sun?
Answer: Catch the Ultra Beasts. A mysterious man, who turns out to be Looker of the International Police, will approach you if you leave your house after you beat the game. ...  Get Type: Null. ...  Capture the Legendary Pokemon & Tapus. ...  Head to the Battle Tree. ...  Collect All of the Z-Crystals. ...  Get Porygon. ...  Hatch Some Eggs. ...  Complete Your Pokedex.