[Boron]

You can try Stone idols . They reduce enemy dominion .

And you can summon Juggernauts lategame to push your dominion .

Finally don't use a lot of Belphegors their dominion reduce ability is very strong in one of my games my 2 Belphegors reduced my lvl 10 dominion in a few turns to lvl 1 and i had to preach with 2 priests to keep it at +2-3 .