Let me first explain the gyst of my work in process. It's set in a medieval world where Magic comes in the form of earths natural energy. God-like entities overlook regions around the world and and share traits with their domain such as forests/jungle/deserts/volcano. One of these entities shared their energy with their humans, granting them special gifts albeit at a cost. This trade drains the entities overtime and the energy gets weaker. Some humans seek to control more entities and gain more power.
My problem is coming up with a feasible way that they would achieve this. Ive toyed with the idea of there being some form of trap or restraints such as chains which could be used but where would these come from? How are they used?
Any help would be greatly appreciated!