Amulets

amulets are usally used store power for the magicians. then in battle usally take the power out of the amulet. also you can have gods come to you in your amulet

sadies amulet
sadies amulet is the knot of isis which is how isis came to her in the red pyramid.

carters amulet
carters amulet is the eye of hores which is how horus came to carter in the red pyrimid.