It is best utilized with Lion's Eye Diamond, when you can discard your hand, produce mana, and pay for one of the discarded cards, which practically turns Lion's Eye Diamond into Black Lotus, the most powerful card in MtG
Combine these two things togethera community that is rightly angry about the lack of good reprints thanks to Wizards printing some astoundingly bad Masters sets over the past couple of years and a community that wrongly expects Magic cards to be unrealistically cheap, so cheap that Wizards couldn't stay in business if it actually met the demandsand it's hard to see how Wizards can easily solve the fake card problem, at least easily and cheaply
1 Drana's Emissary
Creeping Peeper One generic, one blue creature Eye 2/1 Common Tap: Add one blue mana
Its a marriage of two of gamings most beloved fantasy realms, and with absolute legions of fans of both Magic and Final Fantasy to please, it has to hit the highlights and mechanical flavoring of 16 mainline games worth of viable cards
Since this card sees basically no play at all, the long-term demand is incredibly suspect