I think you most definitely want Oracle. BM+drawer is much better than BM, even with the additional cantrips Familiar gives. I would definitely open Oracle+Potion, is good at getting to 3P, and also may help denying the opponent if you are lucky. Also, the increased cycling is important in a Curse battle. Afterwards, the filtered draw will help reach $6 and later $8. The Attack is mild, but in high-variety decks is not to be disregarded, as flipping their Familiars first and their few good Treasures later is important.