Realm is a bad card... I used to play a deck like this in fellowship and it didn't work. You are going to have 9 strength dwarves until you deck out. You won't pull your other support card because you'll discard them. I speak from experience. One skirmish phase using that to max your dwarf's strength is going to discard 45 cards, assuming all your dwarves are out and have no support (which is likley). You also want draw too many companions, because you'll be discarding them all.
From my own experience, Realm is awesome... you have to use it at the right moment (ex. to double-move). Otherwise your dwarves can just take some wounds and be healed with
Mines of Khazad-Dum. It's quite obvious that if you use Realm of Dwarrodelf every site to win every skirmish, your draw deck will be empty quite fast.
