Victory or Death!

Just grabbed all the victory cards from all sets, and a couple more Potion cards. Actually, using Transmute on a Great Hall gets you +2 victory & a Gold... did that a few times to get lots of money and rapidly depleting the Duchies.

Transmuting a Great Hall will ultimately net you more victory if you are also stashing the Dukes into your deck as well. The only problem I see with this setup is that there is a great chance that your deck will get bogged down with all of the cards that basically do nothing until end of game (Duke, Gardens, Vineyard, and the Duchies you will buy/gain to go with the Duke). You could consider putting in a Cellar, possibly in place of the Stash.