Skeletal beasts can be:
*animated (once killed obviously)
*cursed
*slept (? Their legs buckle slightly, but I never actually got one asleep)

Skeletal beasts cannot be:

poisoned
weakened
slept
*disruption-ized**vampiric touched

*=This seems buggy
** Vampiric touch doesn't work, which seems right, but it gives no echo.

Basically, most of the spells give a message about the beast being undead, but disruption doesn't work. And even though they're undead, their bodies can be animated. Maybe they're supposed to be sort of half-undead in this way, but it seems sort of odd, especially that vampiric touch gives no echo, though it does use mana.



Obviously this is all area explore stuff.