Rosalina And Luma vs Ness

When playing Rosalina and Luma against Ness, focus on controlling the stage with Luma while keeping your distance. Use Luma's attack to pressure Ness, especially when he attempts to recover with his up-B; get close and use Rosalina's down special to send him off the stage. Be cautious with your approach to his PK Fire, as it can lead to punishes if you try to counter it with down B. Instead, look for opportunities to punish his landing or recovery, using Rosalina's strong aerials to capitalize on Ness's vulnerabilities.