When one of your creatures dies, you can put it on top of your library
Even looking only at Emerald cards, there are many characters that have strong benefits when they are first played, and this would allow you to play them again
Nameless Inversion Nameless Inversion is really nice because not only is it not a creature, but its also removal
The most powerful cards Coin Flip decks can bring to the table are the almighty Krark's Thumb which make your terrible cards decent, and Frenetic Efreet / Chance Encounter as your powerhouse win conditions
And of course The One Ring, which drives every moment of Saurons existence
As Magic: The Gathering teams up with just about any IP of note that fancies getting in on the TCG game, none of its crossovers have matched the hype that surrounded its Final Fantasy crossover