Combined with any Village, on two turns, Silver is a Laboratory, and Gold is a card that would probably cost $8 normally.
Even without a Village, suddenly every green card is useful, and chances are you will draw a ton.
Yeah...but that doesn't do any work to exclude it completely. Gold is a card that IS worth $8 when you Remodel it...and that costs $4 also, plus a village of some sort, I'm really not seeing the issue...
It's a mini-Chancellor, and on your first Implosion-Duration turn, you're guaranteed to draw three Estates to buy a fourth. Future Implosion turns, guaranteed four Estates to get another Implosion, then some $4 and higher cards.
Open Silver/Implosion. Grab a couple Estates and either another Silver or a *Village. Yet another "race" card.
Guaranteed $3-plus cash on the Duration turn, Village has a chance of doing that two turns in a row, mini-Chancellor so you play it most turns, race conditions. $5 at least.
I think the bigger problems with this one is that it doesn't work well without villages UNLESS the game gets really wonky and stops being Dominion.
Plus, the whole estates = $ thing just ruins the game - it's basically a card that turns your really horrible deck into big money...we only ever see deck-suicide strategies working in games with Possession.