man this would be terrible. They might need to change the whole GW devotion thing for the God. Since pumping out tokens isn't doing anything to help her devotion.
All the gods will have the devotion requirement via design symmetry. I'm OK with the creature dump at the end of turn not helping devotion. I think it's good because A. It requires you to build around it instead of just playing it and winning and B. It would give you two per turn so long as it was in play anyway, because it has two devotion all on its own. Considering it only costs 4, it wouldn't be bad in a quicker, GW aggro weenie deck, maybe even with M13 Ajani, or the rumored third-set GW walker Ajani.
I was going more for a nature goddess type thing there. But maybe a Warrior goddess would be cool too?
Selenya Warrior Goddess 2GW
Indestructible, Vigilance
Not a creature unless G/W dev at 7 blah blah
Whenver SWG attacks, destroy target artifact or enchantment
Creatures you control have Vigilance
6/4