dcae
plaza athénée
If you are asking for wallbreakers that pair with Dnite, I must say the hands down two best wallbreakers in the tier are also dragons: Hydreigon and Kyurem B. However, neither of these are nice synergistically. However, Keldeo has a nice Expel Belt set that wallbreaks nicely due to the bluff and Secret Sword enabling it to bypass the blobs etc. Generally speaking though, wallbreakers aren't that great in OU anymore due to the downfall of stall.