Yeah, one of the reasons Hermes is beatable is because he has such a large deck, he often doesn't draw the cards he needs. If it was just a 60 card pure lava golem rush deck with 12 explosions, Hermes wouldn't be a false god, he would just be a god.
I think the trio is fine, as the spiders are the only monsters. If it was only death or aether, there would be 12 spiders, which isn't enough.
I'm not sure what to suggest, I can't visualize how this deck would run with double card draw. I suppose it would be fast enough to be difficult, but easily controllable so it's not too difficult. Seems okay as it is now.