The Monster Trio, from the Enies Lobby Arc, takes on the Chimera Ant Generals

Luffy vs. Neferpitou
Zoro vs. Shaiapouf
Sanji vs. Menthruyoupi

After this round of battles, Post-Rose Meruem will team up with any of his Surviving Generals to battle the Surviving Strawhats

They are in character, and non-Bloodlusted