[Endoperez]

There're no modding commands for permanent bless, or for making his hp dependent on dominion.

There are High Priests like that in the game. Pythium has Bartholomeus the Patriarch, Marignon has Carmont the Cardinal - both are very old, very strong priests and quite weak mages.

I agree that #spreaddom could also be used for other heroes which are built around the ability, but it's a powerful ability and should stay quite rare.