Many Magic sets support face-down cards nowadays, usually in the combination, so you can mix manifest, morph, and disguise to create an interesting and unique deck
Plus, you can add in unblockable infrastructure you likely already have in the deck to win
If an opponent gains control of Zidane from you, Zidane's last ability will trigger and you'll create a Treasure token
If you control a commander as you cast this spell, you may choose both instead
From the cool, purple coloring to counter the vibrant gold, to Hades status as a dastardly villain, the only thing that these two cards seem to have in common besides their 3/4 strength/will power numbers is the fact that both cards oddly enough have something to do with making a deal
Most notably, if a triggered ability asks its controller to pay a cost, you pay that cost for the copy if you wish to have it paid