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
A flash enabler grants flash to, most broadly, all spells, but we often see this ability limited to something like creatures or sorceries
Peter Pan and Tinker Bell, Mufasa and Simba, and Elsa and Let It Go
I intentionally skirted around treasure when discussing Sacrifice decks for this series, because I wanted to show that archetype is powerful regardless of what fuel its burning
It's a ghostly chicken, and you have to appreciate just how nasty-looking the warty chicken looks
(But to a lesser degree, Maelstrom Pulse is always my first removal spell of choice)