The more followers you have, and the more active they are, the more of this magical energy you get. This energy is used to charge up your spells, and these are vital to victory. Raise, lower and flatten land allow you to sort out your settlement, and also to build land bridges to attack the enemy. Swarm creates a swarm of insects, which send enemies running in confusion. Swamp creates areas of ground which are lethal if entered.
Earthquake devastates large areas of land.
Meteor shower rains down fiery death killing followers and destroying buildings. Bloodlust makes your followers vicious in combat. Invisibility, well it's obvious really. Hypnotise makes enemy followers yours to command, for a limited time. Convert transforms the local wildmen to your followers.