Walkthrough
After catching the Cover Legend Exclusive to the version of the game you're playing, you will return to the Slumbering Weald after receiving a call from Hop to come assist him. After making it back to the Shrine in the Slumbering Weald, you will find Hop calming down the other Cover Legendary. Shortly after, the other Cover Legend will join Hop's Pokemon Team, effectively replacing his Cramorant from his previous team. After this happens, Hop will challenge you to one final battle.
Pokemon Trainer Hop (Grookey Starter): Level 69 Dubwool, Level 69 Corviknight, Level 68 Pincurchin, Level 68 Snorlax, Level 70 Inteleon, Level 70 Zacian/Zamazenta
Pokemon Trainer Hop (Scorbunny Starter): Level 69 Dubwool, Level 69 Corviknight, Level 68 Pincurchin, Level 68 Snorlax, Level 70 Rillaboom, Level 70 Zacian/Zamazenta
Pokemon Trainer Hop (Sobble Starter): Level 69 Dubwool, Level 69 Corviknight, Level 68 Pincurchin, Level 68 Snorlax, Level 70 Cinderace, Level 70 Zacian/Zamazenta