Katrine's Deadly Sphere
(Invocation/Evocation)

Range:  0
Components:  V, S, M
Duration:  Special
Casting Time:  1 turn
Area of Effect:  10-foot radius
Saving Throw:  None

This is one of Katrine's nastier spells. It creates an opaque blue sphere of force capable of moving at the same rate as the caster (polymorphing into a faster form will not improve the sphere's speed, however). It has a flight class of D, but can slow down and stop in one round (speeding up is as normal). The sphere can take simple commands of no more than two or three words (such as "attack her" or "protect me"), and can act on its own towards its original purpose (which is to protect the caster unless told otherwise). The sphere has 20 HP, and will last indefinitely until the caster sends it out of its range or until it takes in excess of 20 points of damage. The sphere has an Armour Class equal to its caster's minus 2 (if the caster has AC 8, the Sphere has AC 6) and its THAC0 (or to-hit table) is the same as its caster's.
The sphere can, once each round, deliver a kinetic blast at its target which does 1d4 damage per level of its caster, or it can slam into someone for 1d6 damage. Note that it can do either or both of these actions in the same round, but cannot use one of them twice. The blast can do either stun damage or killing damage (stun damage: only a quarter of the damage done is real, the remainder simply counts towards knocking the target out).
Any attacks that are directed at the caster can be intercepted by the sphere if it is not slamming into an opponent, and as long as it is within three feet of the caster at the time.

