Only a Priest of Fo can cast this spell
The power and effect of spell is given in the bracket [x] Ranging from 0 to 105. The spell can be cast multiple times to try to improve the effect of it; failure does not destroy the mailbox. Success of casting the spell depends on your channeling skill. Mail is delivered faster with a higher cast. The formula is 101 minutes minus enchant power. A cast of 70 will result in a approximate delivery time of 1/2 hour.
Courier can also be cast on fountains and wells to turn them into wishing wells, which can then be used to make wishes by activating a coin and right-clicking the fountain or well. It is unknown whether the cast power affects the chance of the wish to come true.
Courier is also used on a strange device to create one of the four types of turrets:
- Acid turret - Cast inside caves.
- Frost turret - Cast near water.
- Fire turret - Cast near a glowing item or by lava.
- Lightning turret - Cast high upon a mountain.