[WraithLord]

Turn 1: recruit Oni general.
Turn 2: recruit Dai Oni and prophetize general.
Turn 3: Send the two against a weak indie province (anything other than barabrians, knights etc).
Turn 4: recruit Oni general. Send him to join the duo. Up until now its one province per turn starting at turn 2.
Turn 5: recruit Dai Oni
Turn 6: recruit Oni general.
Turn 7: same as turn #3. From that point its two provinces per turn or one if you want to combine the teams to take out a tough province.

By turn 10 you should be taking three provinces per turn if you like. It works with this bless (and similar) I've tested this many times. Not brilliant, but at least an alternative. maybe.