During the New Kingdom the role and number of shabtis changed. Previously, shabtis were seen as substitutes for the deceased's mummy to protect from destruction and ensure safe passage into the afterlife. As Egypt became more prosperous consumption shifted from a single shabti to anywhere up to ten figures, now acting as assistants to the deceased. This is when agricultural tools are added to the figures, a pick, hoe, seed baskets, water pots supported by a yoke, etc. Spells were also added at this time defining these agricultural roles and the duties of the shabti.
