Cipher? Well, it sure sounds cool. Kinda futuristic and cryptic.
So we have a Windfall effect that you can recur by dealing combat damage with one of your guys (probably with something like Invisible Stalker). Pretty neat, just put the card under your creature card kind of like an aura or equipment. Play some stuff out of your hand and reload before your opponent can really profit from his new hand. In theory it all works out great eh? Probably in limited too.
Will it have the power level required to see some serious constructed play? It’s hard to say, but I can see it in some kind of weird mill deck.