I actually just realized that, over PM, [@Lugubrious] and I already settled on the first system. But I'd like to add some stuff just so necromancy works. Spirits don't immediatly return to the Primordial Pool. That's why Reathos is here. He gathers them (or rather his Holy Sites will) and he returns them through him to the Primordial Pool. Now, a skilled necromancer could start attracting the right spirits to him to piece together the soul again. Lesser necromancy would simply be that they use magic to animate a corpse if that's okay. For the Pool I'd say that only Reathos can 'access' it concidering he is actually part of the thing. If [@Lugubrious] and [@Frettzo] are both OK with this system, then I guess we figured it all out.