Agreed. If he beats even one of them then that's saying something about his power up. He probably won't though and I think muzaka is going to follow rai and then wreck the werewolves.
Who do you guys think is stronger? Rai or Muzaka? Let's say Rai 820 years ago and muzaka 820 years ago. We know Rai stopped Muzaka in the incident so long ago, but we don't know if Rai was already weakened prior to their fight, maybe the clan leaders forced Rai to protect the humans and then...
These new werewolves don't even have a remote chance of beating muzaka. Muzaka and the previous lord might be the only people on the same tier as Rai. If you're in the same tier as Rai, you poop on 99% of Noblesse.
So muzaka is extremely angry atm, but can only keep cool by eating pills. So now Crombel will perform experiments on muzaka so he can achieve his goal to wipe out humanity. Muzaka will get stronger and Rai will probably be the only one able to stop him. But this time maybe kill him...
I purchased the season 1 and 2 books and it came with a character profile.
Edit: if you don't believe me, just go to some other noblesse forum/discussion threads and you can see some other have it as well.