Regardless of whether you take SpikeSpiegel's excellent advice regarding Nightmare, I'd strongly advocate swapping a few of your pillars for pendulums. Even if they're dropping the same quanta round after round, they'll make you less susceptible to Earthquake and similar effects that can ruin your day.
FWIW, the Darkness/Time deck I'm currently running uses Minor Vampire instead of Steal, for a decent EM rate and so that all the Nightmares don't feel like quite such a trap against other
decks.