This might not be my final entry, but it made too much sense to pass up the opportunity. Also, in regards to phasing out your own creatures, if you were preparing a board wipe it could be helpful. Or maybe it would allow a creature with a cumulative upkeep to stick around a bit longer, albeit only affecting every other turn. Or if you had a card whose effect helps you in certain situations and harms you in others, you could phase it out to try to get back to a positive situation. Especially in black. In fact, black might even just want to throw it on a "who cares" creature as a way to manipulate their life a bit more.
Unburdened Mind Sorcery Draw a card. If you discarded two or more cards this turn, instead look at the top four cards of your library, put one of them into your hand, then put the rest on the bottom of your library in any order.