I'm fairly locked in right now with my list, but I have a Bitterblossom available. I just don't know what matchup its good against (and Maze of Ith doesn't do the job as well or better.) Those are the 2 cards I'm debating for the 75th card. I think you're spot on, it does a lot for the deck.

I was also big on Bitterblossom when DRS was legal. It was a way to add just a couple cards and be a legitimate mid-range value deck. DRS, Confidant, and Bitterblossom were huge in control matchups.