>>281219101
The Supernovas level up as Luffy does. Hence why Urouge was the only one to beat a sweet commander and Kidd had to run away, and a few arcs later Law and Kidd were fighting alongside Luffy and took down a yonkou.

Urouge has always been a top tier among the Supernovas. X Drake even had to rely on Urouge to beat the Pacifista for him.