Wine Cellar
$4 Action
+1 card
Discard any number of cards. Gain a card costing up to the number of cards you discarded in coins.
Despite not playtesting, I have a few comparisons. Secret chamber and Vault gives you coins per card discarded, so this is quite similar. Probably inferior most of the times (can't add value with your Silvers and Golds), but can act as a +buy with very large handsizes. Other comparisons include Feast and Horse Traders, which help you get $5 very easily (but not $6). However it is no good with discard attacks.
Thoughts on my card:
This is probably good in slogs, but can also be good with draw engines. I actually wonder if it's possible to have an engine which gains Provinces (and even Colonies) with this card.
And one more thing: can anyone give a good name for this card? Thanks
EDIT: Thanks Awaclus for the suggestion of the name Wine Cellar.