Does Storyteller + Philosopher's Stone work or is it too hard to line them up early enough in your turn? Normally, Philosopher's Stone gets you a decent amount of money but you can't do much with it because you can't draw your deck without making the Stones useless when you enter the buy phase. With Storyteller, you can play those Stones early when they are still worth something, and use that extra money to draw your deck.
If you have a sifter like Cellar or Warehouse, you can line up your Stones with Storyteller hopefully before you play or draw too many cards. If you have a Vault, Secret Chamber or Storeroom, and enough villages, then you can use them with Storyteller to line up Storytellers and Stones while still leaving plenty of cards in your deck and discard pile to power up the Stones. Then, once you've drawn most of your deck with Storyteller/Stone, you can use Vault/Secret Chamber/Storeroom to discard all the junk you drew for some economy as you enter the buy phase.
If you can line up a hand with Storyteller + 3 Philosopher's Stones, then you can draw 3/5 of your remaining cards without really wasting any money (the Stones will be useless once you've drawn your deck anyway). Even if you only get one Stone with the Storyteller the first time around, you can still draw more than 1/5 of your deck, which may be enough to line up a second Storyteller with some remaining Stones or else get you some other drawing cards. In a game with lots of junking and/or large decks (perhaps Vineyards, since you've already got a Potion lying around), maybe that could make some nice engine-like turns from what might otherwise be a slog?