I think I put this in the right place. If I didn't, I'm sorry and please move.
I'm looking for the top 10 best B card draw. It doesn't matter which format because it's going into a casual deck, so broken, if it's out there, is encouraged. Creature, sorcery, instant, or enchantment form will work.
It's barely arguable. 7 cards for 1 mana is infinitely better than any other draw spell out there. The fact that it has you discard isn't much of a downside. Wheel of Fortune got banned in Legacy, and that isn't even close to this in power level. Sure, anteing a card is bad, but drawing 7 cards probably means you win.