This box set includes the following key story characters and creatures from the Tomb of Annihilation adventure: Acererak, Valindra, Ras Nsi, Withers, Tomb Guardian, Xandala, and Chief Yorb.
Creatures and Characters with more than enough backstory to be implemented in any campaign.
If you haven't already check out Tomb of Annihilation - Box 1 for more miniatures.