Frozen, I don't think it's stalling creation; I think it's building mythology. Gods are making oaths and alliances. What happens or could be caused to happen in the future because the blood of Duretep and Ubariya has mingled?* Pregnancies have been caused by much less in our own real world mythologies, for example.
*True, Myth and Legend, and Heliasillyel by proxy, believes the grey mist to be a sort of astral travel but that isn't necessarily truth. As far as I (and Ubariya) am concerned she is there in body and constrained from certain actions by the Grey Mist itself. Therefore, the mixing of their blood doesn't have to be 'virtual' but can be real. In fact, unless HolyMan says 'This is the one true way' we can approach it in different fashions, each one equally true and valid.
Frozen, that is an excellent take on the idea. I heartily endorse it. Ubariya would hate it and reject the undead spawned by it (since they would likely be outside the rebirth cycle of the journeying soul) so having them accepted by the father would be good but only if you really wanted to include them in your portfolio. As an aside, I'm all for portfolio's growing as a result of roleplaying.
*True, Myth and Legend, and Heliasillyel by proxy, believes the grey mist to be a sort of astral travel but that isn't necessarily truth. As far as I (and Ubariya) am concerned she is there in body and constrained from certain actions by the Grey Mist itself. Therefore, the mixing of their blood doesn't have to be 'virtual' but can be real. In fact, unless HolyMan says 'This is the one true way' we can approach it in different fashions, each one equally true and valid.