Like many things in Edon, the summoning spells have been tweaked to be more effective. A carefully buffed summoned creature is a caster's best friend. They can keep enemies away from you, absorb damage for you, and can stop you needing to exhaust your spells to kill everything. To get the most benefit from your summoning spells, it is recommended you get yourself a Summons Book (available from many magic and temple stores), use the highest level spell you can, and share some buff spells with the summoned creature.