I'm playing a necromancer in a game and a common issue is that I only have access to low HD corpses. During research into improving my matrials I came across a Voidstick which can be used to create voidstick zombies, which are vastly stronger than anything else I have at 15HD.
Since it seems to create a specific undead, the original hosts ability scores do not matter. There seem to be two ways to perform the ritual. One requires an hour long ritual and a corpse which finishes with a DC25 knowledge religion check. The second only requires a helpless living and them failing a save.
The problem I'm having is with
To fully animate the creature, one voidstick must be used for each Hit Die the base creature has
When it says base creature, is it talking about the body you are using, or is it talking about the final result? Because if its the body it makes much more sense to use lv1 NPC's (conveniently stocked at any nearby village) instead of using 15. Paying 2500 gp for a single voidstick zombie is an amazing deal, but 37500 gp is not such a great deal. At that price I dont even know if it would be worth it.