I have a feeling that it might have something to do with selling packs.
Just going to blabber on about non-sense: I agree with other comments about disliking Wizard's focus towards Commander. I'm more of a Cube/Limited player and many of these cards just aren't conducive to my Cubing habits.
My favorite card is probably [[Painter's Servant]]. Just look at that cute little guy. Also, despite my general dislike for combo, Legacy Painter is just so much fun.
Two that I just watched that felt pretty summer-y: X and Pearl.
And some others that are not necessarily the best, but are on fall and winter movie lists of mine:
Fall: Sleepy Hollow, Jeppers Creepers, An American Werewolf in London, Candyman, Fright Night
Winter: Snowpiercer, Gremlins, The Wolf of Snow Hollow, The Thing, Black Christmas