Fool's Gold+Guide+Storyteller+(+buy)
Storyteller and Fool's gold are amazing together, as one Fool's gold provides a 4 card draw (if you have played one before, which isn't unlikely). Guide ensures you have a Storyteller in your starting hand, and +buy is important for getting lots of Fool's golds (I used a Villa for that in that game).
Sauna/Avanto+Pathfinding
I think this is the best target for your +Card token. I actually used it in a Teacher game. My deck was somewhat slow and cripled by curses. However, as soon as I got my +Card token in this pile, my deck just exploded like crazy.
Fortress+Transmogrify+amassable $5 card (+Gainer)
Fortress and Transmogrify are absolutely ridiculous together. Gain a bunch of Transmogrifies (did I use a gainer?). Then, when you draw a Fortress with a good amount of transmogrifies on the mat, use all of them to get lots of copies of your favorite $5 card in your hand. This should lead to an amazing turn, and a substantially improved deck afterwards. About amassable $5 card, I used the combo with Minion, but I think the best candidate is Groundskeeper.