Trystan's Command Trystan's Command gets you either another of your best elf, grinds your opponent on value with a double Regrowth, removes one of their best cards, or trades the trample on Overrun for a team-wide untap to grant tons of value or straight up wins
Legendary Monocolor Cycle One of the common things that happens in design is that you get an idea but don't know where exactly to use it, so you let it sit around until it finds a home
Around the office, it was understood that Marvin was the reason that the flavor guys finally broke down and put the myr in a set
Other players know how strong precons are, so they can choose an appropriate deck to play with
Gavin Verhey went into a bunch of such combos here, so rather than tell you all the shenanigans you can do with Cloudshift (and theres a ton, except for flipping Fathom Seer), Im going to give you a sense of how to play the format
Cards that are exiled still leave the battlefield