Restraining Rings

This enchantment creates magic hoops that can restrain someone. Once the enchantment is complete, its caster can trap an opponent by chanting "Diktynna". A powerful enough magician can escape

Procedure

 * 1) Place 6 hoops in a circle of blue chalk
 * 2) Chant "Diktynna, i invoke your prowess to bind our enemies"