One ethereal conjurer in the deck. (subbed out my harrison recently for him)
Duplicate ethereal conjurer.
2nd ethereal conjurer gives echo of medivh.
3rd ethereal conjurer gives echo of medivh.
Wyrms. Everywhere.
(and yes I did take harrison out; the 4th ethereal conjurer gave me mirror entity, which triggered on my opponent's harrison)
I'm -really- liking ethereal conjurer now...

I tried jeweled scarabs, and they were good if they hit the right cards (mage secrets 3 mana!) but often they'd just hit crappy 3 mana minions that even as a free card didn't do enough.