I always liked how Brainstorm can put cards back in your deck, allowing you to mill or search for them once again. Of course, the fact that it can turn 2 dead cards into gas completely overshadow's that fact.

So, here's an attempt to make a 'fixed' brainstorm. Looks pretty similar to Catharic Reunion once you see it, hence the red. I think 2 cmc is fine but I don't want this to cost