Well. A god stepping foot in my domain over the dead is touching souls. My souls. Truthfully we tried this once before and she ditched. But the thing is I think It would be fair if sub domain was helpful not full control. Maybe their problems or their fate can be seen but not control. And as far as fearing my scythe goes. That scythe has claim countless gods. Their souls their essence powers the scythe. That is what happened to most of the light gods and dark gods alike. They were sucked into that scythe. That is why it is feared. That weapon is the symbol of death. And even a god fears it.  And as far as your plan to raid the underworld. You can't leave lest he permits kill him your stuck. Kill him hell on earth. Their must always be a death. He will just return. By finding a worthy mortal in his cults. To hold his power