[pnpgm] change tactics

[Alex Koponen]

Z'leyra, realizing that bouncing her greatsword off a force field wasn't 
accomplishing anything decides to change her tactics. She goes defensive 
and casts Invisibility, then Levitation, then Insubstantiability on 
herself. Then she will levitate above the brain, swing the greatsword 
(insubstantial) thru the force field and nearly fully into the brain and 
release the greatsword to materialize inside the brain. Preferably in 
the most vital spot her skill at anatomy can find.