Answer:
The chief priests and their attire at their sacrifices.
Step-by-step explanation:
The chief role of the Chachalma was to offer a human heart to the god. Human sacrifices rituals were common in the Aztec civilization as they tried to please their god by offering live heart cut out of a human. The Chachalmua is the Ministers of holy things. The human sacrifice became important for agricultural productivity and to win military conquests.