[pnpgm] Clairvoyance

[Alex Koponen]

When Z'leyra estimates that a sea dragon will intercept the ship in 
under two minutes she will cast Clairvoyance at ELmax on herself. She 
will then prepare to use her magical sling to fire missiles at the sea 
dragon(s). If one gets within 50' she will cast Sh Invisibility EL2 on 
herself and resume using her sling, or use her staff if the sea dragon 
is within reach.