[tinkthank]

All of the things said so far are correct and good. I'll just try to put it in my own words too, in the hope that they match the original poster's.

Blood slaves (the virgins you found) are *functionally equivalent* to the other types of gems. Yes, you can pool them by "putting them in the lab". You can also carry them around with you (just like mages can carry around the other types of gems), they will be in your mages' inventory as little red "X"s, BUT (and this is the difference to the gems) they will stand around on the battlefield (and can get hurt too) if the mage carrying them gets into a battle.

Terminologically, you do NOT "sacrifice" blood slaves on the battlefield; you "use" them (like you "use" gems). You can think of it as a form of sacrifice, sure, but in this game, the terminus "sacrifice" is ONLY used for a special activity which ONLY *priests* of Abyssia, Mictlan and Vanheim can do: namely: sacrifice blood slaves in order to raise dominion. This is not done during a battle. It is a "special action" (like: "perform assassination" or "preach the teachings of God" or however it is exactly phrased).

The ONLY way to find blood slaves is to perform a "blood hunt" (which is also a special action) (with ONE exception: Mictlan gets 3 blood slaves per turn). AFAIK there is NO "blood slave source" similar to a gem site (but I may be wrong).

Is this helpful?