That is odd... I just checked my copy and you're right. I think the thought here is that even though you're getting the raw materials for free each casting, at lower levels you don't have as much control in fitting it all together and shaping it perfectly, so you still need to hire workers to touch it up, and the lower your level, the more "touching up" needs to be done. At 16th level you're assumed to have enough control to not need any help in that regard.EvilGM said:True... and the exterior walls make up the bulk of the tower's price - about 10k of the 15k cost.
For some reason though they only give you a discount on walls until you are higher level and the castings required are sorta screwy as well...
Wall of Stone (9th lvl caster) -15% (48 castings)
Wall of Stone (12th lvl caster) -50% (72 castings)
Wall of Stone (16th lvl caster) free (72 castings)
Wall of Stone (20th lvl caster) free (30 castings)
Also, the walls would then be hewn stone walls (3' thick, 8hard/540hp).
edit- hewn stone walls cost 2.4 times what masonry walls do.
This info from the Stonghold Builder's Guidebook btw and pertains to the 15k tower I posted above.
tarchon said:You might want to start collecting skulls and bones for the decor.
Necromancers also tend to have it easy with the labor costs.
Thanee said:As for opposed schools: Enchantment would be one that fits, as it is so heavily aimed at the living. Illusion maybe?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.