@Pasha: This is certainly far too large a map for me. Soapy and Huzzur, I salute you for your stamina. Iron men walk amongst us.
Bloodstones can be hoarded by Abysia rather effectively, btw. You need but an earth warlock and you're set. There's even a feedback-loop before you start arguing definitions, since every bloodstone yields 10 gold per turn if alchemized and thus pays the upkeep of an apprentice
... Come to think of it, using the gems to make dwarven hammers is also a cumulative proposition since every hammer can be used to save 5 slaves or more per turn
. Such foolery aside, 15 slaves and 2 earth gems to get 1 earth gem a turn? Dang cheap, if you have the mages (like Abysia does) and ask me.